HPSC PGT Physics Mock Test - 5 - HPSC TGT/PGT MCQ

The correct answer is Rahul Bhatia.

Key Points

• InterGlobe Aviation has announced the appointment of its Co-founder Rahul Bhatia as the company's Managing Director with immediate effect.
• The company is the parent of the country's largest airline IndiGo.
• Bhatia is the Co-founder and Promoter of InterGlobe Aviation. 
• Meleveetil Damodaran is the Chairman of IndiGo.
• The company is headquartered in Gurgaon, Haryana.

Additional Information

• Professor Dinesh Prasad Saklani has been appointed as the new Director of the National Council of Educational Research and Training (NCERT).
• He has been appointed for a period of five years or till he attains the age of 65 years, whichever is the earliest.
• Universal Acceptance Steering Group has appointed Paytm founder Vijay Shekhar Sharma as its ambassador.
• The Reserve Bank of India (RBI) has appointed Vinod Rai as the independent Chairman of the Unity Small Finance Bank (USFB).
• Senior bureaucrat Vikram Dev Dutt has been appointed as the chairman and managing director (CMD) of Air India Ltd. 
• Narendra Kumar Goenka has been appointed as the new chairman of the Apparel Export Promotion Council, AEPC.
• Reserve Bank of India has approved the appointment of Ittira Davis as managing director & chief executive officer of (MD & CEO) of Ujjivan Small Finance Bank for one tenure.

The first figure is a triangle, then there are 3 line segments inside it.

Similarly,

Circle, then there should be 3 line segments inside it.

The figure is shown below:-

Hence, Option (2) is the correct answer.

Let CP of the article be Rs. 100

⇒ SP of the article = 100 × 180/100 = Rs. 180

New cost price = 100 × 120/100 = Rs. 120

⇒ New profit = 180 – 120 = 60

Profit percentage = 60/120 × 100 = 50%

Teachers, nowadays, are promoting seminars as these are helpful in boosting students' self-confidence. Besides, they also help all the students (both listeners and the student delivering the seminar) in preparing a difficult topic easily.
A seminar is a group meeting led by an expert that focusses on a specific topic or discipline. Attending a seminar has numerous benefits, including improving communication skills, gaining expert knowledge, networking with others and renewing motivation and confidence.

Oscillatory motion is periodic to and fro motion. By definition

The internal energy of a system decreases by the same amount as the work done by the system.
 
Change in internal energy=work done+heat exchange
change in internal energy=work done if process has no heat exchange, i.e. it's adiabatic and the temperature must decrease
 

The significant figures in any number are all certain digits plus one doubtful digit. Certain rules are followed which are as under:

1) All one zero digits in a number are significant.

2) The zeroes between two non-zero digits are always significant.

3) The zeros written to the left of the first non-zero digit in a number are non-significant. They simply indicate the position of the decimal point.

4) All zeros placed to the right of a decimal point in a number are significant.

Since, 0.0268 has three significant figures whereas 2.608 cm, 26.08 mm and 2.068 cm have four significant figures, A is the correct answer. 

Theoretical  

As the relative velocity of the satellite with respect to the earth is zero, it appears stationary from the Earth surface and therefore it is called is geostationary satellite or geosynchronous satellite.

When we use white light, the central bright will have light from all wavelengths as none of them cancel out. Hence the central bright fringe appears white.
For other bright fringes, depending on the wavelength of light constructive interference will not take place for certain wavelengths. Hence they will not be white, rather will be coloured, hence differentiated from central fringe.

Parallactic second is the unit of distance because parallactic second is an abbreviation of parsec. Parsec = Parsec is the Unit for larger distances.It is the distance at which a star would make parallax of one Second of arc.

Path difference = (l1 + l3) – (l2 + l4)
for destructive interference
Path difference = (2n + 1) λ/2
from (1) and (2)
(l1 + l3) – (l2 + l4) = (2n + 1) λ/2

Let the horizontal displacement of the plank, at an instant during its oscillation is x and its velocity is v.

(b) Distance between the hostel and the station = 10 km = Displacement of the car

∴ Average velocity = 

From the definition, the work done to a test charge ‘q0’ from one place to another place in an electric field is given by the formula
W=q₀x[v_final-v_initial ]
100=4x[v-(-5)]
v+5=25
v=20V
 

The newton second (also newton-second, symbol N s or N.s) is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram metre per second (kg.m/s). One newton second corresponds to a one-newton force applied for one second.

A freely falling body observes a constant downwards force of gravity which hence applies a constant downward acceleration upon the body.

Time taken by first drop to cover 5 cm (u = 0), is: 
h = 1/2 gt²
5 = 1/2 x 10 x t²
t = 1 sec
Hence, the interval is 0.5 sec for each drop.
Now distance fallen by second drop in 0.5 sec
h₁ = 1/2 gt²
= 1/2 x 10 x (0.5)²         
= 5 x 0.25 
= 1.25 m
Height above the ground ( of 2^nd drop) = 5 - 1.25 = 3.75 m

M=k√L₁L₂

here k is cofficient of coupling. Its maximum value is 1 for tight coupling.

Length of the wire, l =15 m
Area of cross-section of the wire, a = 6.0 × 10⁻⁷ m²
Resistance of the material of the wire, R = 5.0 Ω
Resistivity of the material of the wire = ρ
Resistance is related with the resistivity as,
ρ=RA/l
=5.0×6×10⁻⁷/15
=0.2×10⁻⁶Ωm

Hypermetropia is corrected using converging lens.  In this defect the person is able to see far objects clearly but difficulty with near vision. The image is focused behind the retina rather than upon it. This occurs when eyeball is too short or the power of lens is too weak. By using a convex lens the defect is corrected.

The particle remains stationary under the acting of three forces F₁,F₂  and F₃ , it means resultant force is zero,

Since, in second case F₁ is removed (in terms of magnitude we are talking now), the forces acting are F₂ and F₃ the resultant of which has the mag-nitude as F₁, so acceleration of particle is F₁ /m in
the direction opposite to that of F₁.

According to the question, there can be two cases in which the point mass is at a distance a from the surface of the spherical shell. 

1. The point mass is at the center of the shell

2. The point mass is outside the shell at a distance 2a from  the center of the shell.

Superposition principle dictates that the potential and field at any point will be the sum of the potentials and fields respectively at that point due to the individual masses.

It can be seen that in both the cases, neither field nor potential is zero inside the shell. This is due to the contribution of the point mass.

The electric field lines are perpendicular to the equipotential surface. The field lines can not intersect each other because the electric force can not have two directions at a point.