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AWES PGT Physics Mock Test - 4 - AWES TGT/PGT MCQ


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30 Questions MCQ Test AWES PGT Mock Test Series 2024 - AWES PGT Physics Mock Test - 4

AWES PGT Physics Mock Test - 4 for AWES TGT/PGT 2024 is part of AWES PGT Mock Test Series 2024 preparation. The AWES PGT Physics Mock Test - 4 questions and answers have been prepared according to the AWES TGT/PGT exam syllabus.The AWES PGT Physics Mock Test - 4 MCQs are made for AWES TGT/PGT 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for AWES PGT Physics Mock Test - 4 below.
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AWES PGT Physics Mock Test - 4 - Question 1

Which institution signed a Memorandum of Understanding (MoU) with Conlis Global for licensing an innovative bone healing technology?

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 1

The Indian Institute of Technology (IIT Kanpur) Kanpur signed an MoU with Conlis Global for licensing an innovative bone healing technology based on Nano Hydroxyapatite-based Porous Composite Scaffolds. This collaboration aims to promote bone healing and regeneration in orthopaedic and dental applications, among others.

AWES PGT Physics Mock Test - 4 - Question 2

Renewable source of energy is 

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 2

The correct answer is Sun.

Key Points

  • Renewable source of energy:
    • Renewable energy is useful energy that is collected from renewable resources, which are naturally replenished on a human timescale, including carbon-neutral sources like sunlight, wind, rain, tides, waves, and geothermal heat.
    • This type of energy source stands in contrast to fossil fuels, which are being used far more quickly than they are being replenished.
    • Although most renewable energy is sustainable energy, some are not, for example, some biomass is unsustainable.
    • Renewable energy often provides energy in four important areas: electricity generation, air, and water heating/cooling, transportation, and rural (off-grid) energy services.
  • Renewable energy flows involve natural phenomena such as sunlight, wind, tides, plant growth, and geothermal heat, as the International Energy Agency explains.
  • Renewable energy is derived from natural processes that are replenished constantly.
  • In its various forms, it derives directly from the sun, or from heat generated deep within the earth.
  • Included in the definition is electricity and heat generated from solar, wind, ocean, hydropower, biomass, geothermal resources, and biofuels, and hydrogen derived from renewable resources.
  • Rapid deployment of renewable energy and energy efficiency, and technological diversification of energy sources, would result in significant energy security and economic benefits.
  • It would also reduce environmental pollution such as air pollution caused by the burning of fossil fuels and improve public health, reduce premature mortalities due to pollution and save associated health costs that amount to several hundred billion dollars annually only in the United States.
  • Renewable energy sources, that derive their energy from the sun, either directly or indirectly, such as hydro and wind, are expected to be capable of supplying humanity energy for almost another 1 billion years, at which point the predicted increase in heat from the Sun is expected to make the surface of the Earth too hot for liquid water to exist.
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AWES PGT Physics Mock Test - 4 - Question 3

Name the majority group of the Russian Social Democratic Workers Party led by Lenin?

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 3

The correct answer is i.e. Bolsheviks.

Some facts about the Russian Socialist Democratic party(RSDP):

  • The formation was the party that happened in 1898.
  • The party followed Marxist ideas, believing the industrial working class, not peasants, would bring about revolution.
  • The party ideas were based on the philosophies of Karl Marx and Friedrich Engels, namely that despite Russia's agrarian life, the real radical potential extended with the industrial working class.
  • They played an important role in the politics of Russia at that time and they also won few seats in the elections.
  • It was mainly divided into two groups - Bolsheviks and Mensheviks.
  • The following table will help you to understand them better:
AWES PGT Physics Mock Test - 4 - Question 4

Fluency, Elaboration, Originality, and Flexibility are the factors associated with_____.

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 4

Fluency, elaboration, originality and flexibility are associated with divergent thinking. Divergent thinking is creating multiple ideas, unique possible solutions, or ideas of a problem in a short period. Fluency, elaboration, originality, and flexibility are the dimensions of Divergent thinking and are associated with giftedness. Divergent thinking is important in the creative thinking process. Guilford (1986) considered creative thinking as involving divergent thinking, consisting of four elements: fluency, flexibility, originality, and elaboration. 
Thus, this is the correct answer. 

AWES PGT Physics Mock Test - 4 - Question 5
Which of the following can be positive strength for normal children in inclusive classrooms?
Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 5

Inclusive Education:

  • It refers to an education system that accommodates all children regardless of their physical, intellectual, social, emotional, linguistic, or other conditions.
  • It provides a provision to include disabled children along with normal children in a regular classroom environment.

An inclusive classroom refers to an education system that includes children regardless of physical, intellectual, social, linguistic, or other differently-abled conditions.

  • In an inclusive classroom with diverse learners, cooperative learning, and peer-tutoring is actively promoted to facilitate peer-acceptance.
    • Cooperative learning: It refers to a heterogeneous group where students work collaboratively to achieve learning outcomes. It develops critical thinking, brainstorming, communication, and life long learning skills.
    • Peer tutoring: It refers to the learning process where fellow students teach each other. In this strategy, a higher-performing student is paired with a lower performing student to teach specific skills.
  • An inclusive classroom is not limited to children with a disability but also gifted children, economically disadvantaged children, children from remote populations, children belonging to ethnic, linguistic, or cultural minorities, or children from other marginalized groups.

Therefore, Social skills development can become a positive strength for normal children in inclusive classrooms.

AWES PGT Physics Mock Test - 4 - Question 6

‘Choice of challenge’ is a characteristic of which of the following?

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 6

‘Choice of challenge’ is a characteristic of motivation.

Motivation is the drive to achieve something in life that satisfies one’s needs. There are two primary types of motivation namely, intrinsic motivation and extrinsic motivation. A number of behavioural characteristics are indicators of high motivation. Here are some of the important factors and some ways to help a child develop these characteristics:

  • Persistence is the ability to stay with a task for a reasonably long period of time. While very young children cannot concentrate on one activity for an hour, there are still measurable differences in the length of time that young children will engage in an activity. A highly motivated child will stay involved for a long period of time, whereas an unmotivated child will give up very easily when not instantly successful.  Children learn persistence when they are successful at a challenging task.
  • Choice of challenge is another characteristic of motivation. Children who experience success in meeting one challenge will become motivated, welcoming another. These motivated learners will choose an activity that is slightly difficult for them but provides an appropriate challenge. Unmotivated children (those who have not experienced early success) will pick something that is very easy and ensures instant success.
  • The amount of dependency on adults is another indicator of motivation. Children with strong intrinsic motivation do not need an adult constantly watching and helping with activities. Children who have a lower level of motivation or are extrinsically motivated need constant attention from adults and cannot function independently.
  • The last indicator of motivational level is emotion. Children who are clearly motivated will have a positive display of emotion. They are satisfied with their work and show more enjoyment in the activity. Children without appropriate motivation will appear quiet, sullen and bored.

AWES PGT Physics Mock Test - 4 - Question 7

If the Young's double slit experiment is performed with white light, then which of the following is not true

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 7

The central fringe will be white because all the component color bands will superimpose there. The option (a) is true.
Since the fringes of different wavelengths of light have different fringe-widths, there will not be a completely dark fringe. Option (b) is true.
Since the wavelength of the violet light is nearly half of the red light, the fringe-width of the violet light is half of the red light. Since the central bright violet fringe combines with other fringes to form the white fringe, the next to it will be a minima for violet light. So violet will not be next to the central white fringe. Next will be a very thin band of white light minus violet light which will give a shade of off white. In this way, the components of indigo, blue, green, yellow and orange colors will be withdrawn respectively in the very thin consecutive bands. These will effect in different off white shades which cannot be clearly differentiated from the white band. The first color away from the center will be recognized as red when in these very thin bands yellow + orange + red, orange + red or red remains. Hence the option (d) is true.
https://cn.edurev.in/ApplicationImages/Temp/0_c2d814a7-e5a6-4115-9344-41d49f87e846_lg.png
Young's Double Slit Experiment with White light

AWES PGT Physics Mock Test - 4 - Question 8

If an equation is dimensionally consistent:

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 8

The principle of homogeneity of dimensions states that “For an equation to be dimensionally correct, the dimensions of each term on LHS must be equal to the dimensions of each term on RHS.”

AWES PGT Physics Mock Test - 4 - Question 9

Which of the following phenomena takes place inside an optical fiber ?

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 9

In fibre optics ,an optical phenomenon known as total internal reflection is used to transmit light rays. In case of the simplest form of optical fiber, light entering one end of the fiber strikes the boundary of the fiber and is reflected inward.

AWES PGT Physics Mock Test - 4 - Question 10

What is the percentage error in the physical quantity A if it is related to four other physical quantities a, b, c and d as The percentage error in measurement of a, b, c and d are 1%, 3%, 2% and 2% respectively.

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 10

AWES PGT Physics Mock Test - 4 - Question 11

Average power supplied to an inductor over one complete cycle

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 11

Explanation:In the first half of the cycle, power is supplied to the inductive circuit. In the next half the inductor dissipates the energy supplied by circuit.Thus overall no power is supplied to the circuit

AWES PGT Physics Mock Test - 4 - Question 12

A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49 N, when the lift is stationary. If the lift moves downward with an acceleration of 5 ms-2, the reading of the spring balance will be    

 [AIEEE 2003]

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 12

In stationary position, spring balance reading  => mg = 49

 

AWES PGT Physics Mock Test - 4 - Question 13

For a particle moving under a central force, it's motion will be

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 13

Concept:

Central force:

  • The central force in classical mechanics is defined as the force that is acting on an object which is directed along the line joining the object and the origin.
  • The magnitude of the central force depends only on the distance of the object and the centre.
  • Due to the central force, the body moves or tends to move in a circular or an elliptical orbit around an axis.
  • Since there is no torque due to the central force. So, the angular momentum will remain constant.
  • Some example of central forces is gravitational force and electrostatic force.

Explanation:

Let, r represents the distance of the particle from origin and r̂ is radial direction, than central force

F(r) = F(r)r̂ 

So the torque acting on it

τ = r × F(r)r̂

⇒ τ = r × F = F(r) (r × r)

⇒ τ = 0    ......(1)

Let p = mv = linear momentum,

Now we know that momentum is also conserved in this case, therefore

Angular momentum L = r × P

r.L = r.(r × p)  = 0     ......(2)

Also, to know angle b/w velocity and angular momentum

v.L = v.(r × p) = 0    .....(3)

Hence, from equation (2) and (3), we can see that both the position vector r  and the velocity vector v  thus lie in the plane perpendicular to  L.

Therefore, we can say that, if a particle moving under a central force, its motion will be in phase.

AWES PGT Physics Mock Test - 4 - Question 14

Energy is supplied to the damped oscillatory system at the same rate at which it is dissipating energy, then the amplitude of such oscillations would become constant. Such oscillations are called

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 14

Energy is supplied to the damped oscillatory system at the same rate at which it is dissipating energy, and then the amplitude of such oscillations would become constant. Such oscillations are called maintained oscillations. By the definition of maintained oscillations.

AWES PGT Physics Mock Test - 4 - Question 15

If electric field lines cross each other that would mean

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 15

Properties of Electric Field Lines. At every point on an electric field line, the tangent represents the direction of electric field. If two field lines cross each other at the point, then there would be two possible directions for electric field which is physically impossible.

AWES PGT Physics Mock Test - 4 - Question 16

There are 20 divisions in 4 cm of the main scale. The vernier scale has 10 divisions. The least count of the instrument is:

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 16

There are 20 divisions in 4 cm of main scale
⇒ 1 cm of main scale will have 20/4 = 5 divisions

Thus,  1 MSD  = 1/5 = 0.2 cm Vernier scale has 10 divisions 
Thus, L.C. = 0.2/10 = 0.02 cm 

AWES PGT Physics Mock Test - 4 - Question 17

The number of significant figures in the distance of one light year , 9.4605 × 1015 m is:

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 17

As the power of 10 is irrelevant in the determination of significant figures hence, the numbers of significant figures are 5 i.e. 9,4,6,0,5

AWES PGT Physics Mock Test - 4 - Question 18

The instantaneous flux associated with a closed circuit of 10Ω resistance is indicated by the following reaction f = 6t2 _ 5t + 1, then the value in amperes of the induced current at t = 0.25 sec will be

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 18

ϕ=6t2−5t+1
e= dϕ​/dt =12t−5
at t=0.25sec
∣e∣=(12/4−5)=∣3−5∣=2
i=e/R=2/10=0.2A

AWES PGT Physics Mock Test - 4 - Question 19

A 14.5 kg mass, fastened to the end of a steel wire of unstretched length 1.0 m, is whirled in a vertical circle with an angular velocity of 2 rev/s at the bottom of the circle. The cross-sectional area of the wire is 0.065 cm2. Calculate the elongation of the wire when the mass is at the lowest point of its path.

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 19

Mass, m = 14.5 kg
Length of the steel wire, l = 1.0 m
Angular velocity, ω = 2 rev/s = 2 × 2π rad/s = 12.56 rad/s
Cross-sectional area of the wire, a = 0.065 cm2 = 0.065 × 10-4 m2
Let Δl be the elongation of the wire when the mass is at the lowest point of its path.
When the mass is placed at the position of the vertical circle, the total force on the mass is:
F = mg + mlω2
= 14.5 × 9.8 + 14.5 × 1 × (12.56)2
= 2429.53 N
Young’s modulus = Strss / Strain
Y = (F/A) / (∆l/l)
∴ ∆l = Fl / AY
Young’s modulus for steel = 2 × 1011 Pa
∆l = 2429.53 × 1 / (0.065 × 10-4 × 2 × 1011)   =   1.87 × 10-3 m
Hence, the elongation of the wire is 1.87 × 10–3 m
Hence 1.87 × 10–3 m

AWES PGT Physics Mock Test - 4 - Question 20

Time interval between two successive maxima of sound waves with frequencies v1 and v2 is given by

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 20

As we know time interval will have dimensions of time so check in option for dimension of time.
Dimensions of v is "per second" or [T-1]

AWES PGT Physics Mock Test - 4 - Question 21

For the arrangement shown in figure, the time interval after which the water jet ceases to cross the wall (area of cross section of tank is A and orifice is ‘a’) 

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 21

Velocity of efflux 

Find ‘h’ to have range of ejected water ≥ x x 

AWES PGT Physics Mock Test - 4 - Question 22

Two different masses are dropped from same heights, then just before these strike the ground, the following is same :

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 22

Both the objects with different masses will attain the same v when striking the ground because acceleration and height is the same. 
As, K.E=(1​/2)mv2P.E=−GMm​p/r=mv
Thus K.E, P.E, and p will be different.
 

AWES PGT Physics Mock Test - 4 - Question 23

Which one is not an electromagnetic wave?

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 23

Ultrasound waves are a type of a sound wave which is longitudinal in nature while others are electromagnetic waves because they are transverse in nature.

AWES PGT Physics Mock Test - 4 - Question 24

The electric current in a liquid is due to the flow of

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 24

In liquids the current is carried by ions. Ions are charged particles (atoms or groups of atoms). Ions can either be positive or negative, the positive ions being attracted to the negative plate and the negative ions to the positive plate. A positive ion is a particle with some negative charge taken away and a negative ion is a particle with some extra negative charge added.

AWES PGT Physics Mock Test - 4 - Question 25

Electric field is steepest in the direction in which the potential

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 25

In the direction of electric field the electric potential decreases. This is because electric potential is the work done against the direction of the electric field.

AWES PGT Physics Mock Test - 4 - Question 26

A block of mass 4 kg is suspended through two light spring balances A and B. Then A and B will read respectively  

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 26

Tension is uniformly transmitted if the springs are massless.

AWES PGT Physics Mock Test - 4 - Question 27

The electric field intensity at a point situated 4 meters from a point charge is 200 N/C. If the distance is reduced to 2 meters, the field intensity will be

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 27

Field intensity is proportional to the inverse of the square of the distance separating the point charges:

F = k*q1*q2/d^2

Since k, q1, and q2 are assumed to be constant, their product can be combined to form a single constant:

K = k*q1*q2, so

F = K/d^2 (and by algebraic manipulation we have K=F*d^2).

Therefore we know that

F(at d=4) = K/4^2, and

F(at d=2) = K/2^2.

Since K is a constant, we can equate K=F*d^2 for each case:

K=F(at d=4)*4^2 = F(at d=2)*2^2

so

F(at d=2) = (F(at d=4)*4^2)/2^2

F(at d=2) = 200N/C * (4^2)/(2^2) = 200N/C *16/4 = 800N/C.

AWES PGT Physics Mock Test - 4 - Question 28

A bar magnet of magnetic moment 1.5 J/T lies aligned with the direction of a uniform magnetic field of 0.22 T. What is the amount of work required by an external torque to turn the magnet so as to align its magnetic moment opposite to the field direction?

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 28

Work required to turn the dipole is given by
W=MB[cosθi- cosθf]
Here θi is the initial angle made by a dipole with a magnetic field and   is the final angle made by a dipole with a magnetic field.
magnetic moment is normal to the field direction.
so, θi=0 and θf=90
W = 1.5 × 0.22 [ cos0° - cos90° ]
W = 0.33J
 
magnetic moment is opposite to the field direction.
so, θi=0 and θf=180
now, W = 1.5 × 0.22 [ cos0° - cos180°]
= 0.33 [ 1 - (-1) ]
= 0.66 J

AWES PGT Physics Mock Test - 4 - Question 29

In an adiabatic process internal energy of gas

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 29

From the first law of thermodynamics,
we know, dU = dQ - dW ; (work done BY the system is considered +ve)
For an adiabatic process, dQ = 0, and hence, dU = -dW
For an ideal gas expansion, we see that work done
BY the system is +ve (recall the sign convention for work done), i.e., dW > 0.
Therefore, dU is less than 0, and thus, the internal energy decreases.

*Multiple options can be correct
AWES PGT Physics Mock Test - 4 - Question 30

A current I flows along the length of an infinitely long, straight, thin walled pipe. Then

Detailed Solution for AWES PGT Physics Mock Test - 4 - Question 30

There is no current inside the pipe. Therefore

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