EMRS PGT Physics Mock Test - 9 - EMRS MCQ

Concept-

• We know that all living organisms need food.
• Food supplies proteins, carbohydrates, fats, vitamins, and minerals, all of which we require for body development, growth, and health.
• Both plants and animals are major sources of food for us.
• We obtain most of this food from agriculture and animal husbandry.
• Cereals such as wheat, rice, maize, millets, and sorghum provide us carbohydrates for energy requirements.

Explanation-

The principal food crop of the world is wheat.

• Wheat is a Rabi crop that belongs to the Gramineae family.
• The scientific name of rice is Triticum aestivum.
• Wheat is the principal crop for millions of people in the world.
• Wheat grain is used for cooking.
• So, it is the principal cereal crop compared to rice, maize, and barley. 

Additional Information

• The major food crop of the world that belongs to the family is Gramineae. 
• Gramineae is also known as the Poaceae is the family that contains all the major crops that belong to the grass family.
• Poaceae or Gramineae is the most economically important plant family, providing staple foods from domesticated cereal crops as well as feed for meat-producing animals. 
• Examples such as maize, wheat, rice, barley, and millets, etc.

At the State level, the Council of Ministers is the executive body of the state that assists the Governor in the administration.

Important Points

The Council of Ministers consists of the Chief Minister and other ministers.

• The Chief Minister is appointed by the Governor while the other members of the council are appointed by the Governor on the advice of the Chief Minister.
• The Council of Ministers takes the policy decisions and advises the Governor on important issues.
• The council submits bills to the Assembly and initiates them.
• It gives directions to partner states and institutions of the community.
• It considers the budget of the community.
• It controls the finance of the state.
• It makes the rules and regulations for the staff.
• It submits the annual progress reports and makes the agenda of the meetings.
• It establishes the Sectorial Committees.

Thus, it is clear that the Governor appoints the Council of Ministers of a State. 

The word that can be prefixed to make the following new words is ‘Mis’.

Mis + Interpret = Misinterpret

Mis + Behave = Misbehave

Mis + Understand = Misunderstand

Mis + Take = Mistake

The logic follows here is:

Now,

Vasudha is 13 years old, has a weight of 48 kgs and a height of 161 cms.

It is clearly mentioned in the criteria of Hockey and Football about the weight of the candidate. Vasudha has a weight of 48 kgs which is less than the criteria set for both games. Therefore, Vasudha neither qualifies for Hockey nor for Football.

Hence, the correct answer is "Neither Hockey nor Football".

Ascending order:
686,   719,   765,   795,   815,   822,   835

Middle Number

Middle digit of 795 is 9.

A teaching aid cannot prevent behavioural problems. Proper psychological treatment is required to deal with behavioural problems. Teaching aid is a means used by teachers for facilitating learning among pupils. They reinforce learning and do not address any behavioural problems.

A banked turn (or banking turn) is a turn or change of direction in which the vehicle banks or inclines, usually towards the inside of the turn. The bank angle is the angle at which the vehicle is inclined about its longitudinal axis with respect to the horizontal.

Unit of angular frequency is rad/sec which can be said as angle/time. As angle is dimensionless and time has dimension T, we get the dimension of angular frequency as T^-1. So it has 0 dimensions in length.

In the given question neither the magnetic field nor the area of the ring is changing. So there will be a constant flux in the ring and hence there will be no EMF (or) current induced in the ring.

Coefficient of viscosity (η)= Fr/Av   

 F= tangential Force, Area, r= distance between the layers, v= velocity.

Dimensional Formula of Force = M¹L¹T^-2.
Dimensional Formula of Area= M⁰L²T⁰.
Dimensional Formula of distance= M⁰L¹T⁰.
Dimensional Formula of velocity= M⁰L¹T^-1.

Putting these values in above equation we get,

[η]= [M¹L¹T^-2][M⁰L¹T⁰] / [M⁰L²T⁰] [M⁰L¹T^-1] = [M¹L^-1T^-1]

Explanation:

At const volume, 

Q = 500 J

Q=nCPΔT

500=1×2.5×8.31ΔT

ΔT=24.06

W=nRΔT=1×8.31×24.06=200J

When friction is absent

a₁ = gsinθ

When friction is present

a₂ = gsin θ - μ_k gcos θ

From Eqs. (i) and (ii)

Given:

Let two balls A and B have mass m_A, m_B respectively, and their initial velocities are u_A and u_B. After the collision, they will move with the same velocity, v_o. 

Given that mass of both balls are same.

So  m_A = m_B = m

u_A = V,  u_B = 0

From the Concept of Momentum Conservation:

m_Au_A + m_Bu_B = (m+m)v_o

mV = 2mv_o

v_o = V/2

Both the balls after impact will move with velocity v/2.

Fringe width = λD/d
where λ us wavelength
D is the distance between slits & screen
d is the distance between slits
ATQ: x = Lλ/d => λ = xd/L

Conservation of angular momentum:
L= 2m dA/dt

As one coil is wound over the other so that coupling is tight i.e. k=1

Given,
Number of turns, N = 500 turns
Radius of solenoid, r = 2.9
Relative permeability of annealed iron of Km=1400
Permeability of free space,  μ₀ =4π
The magnetic field, B=0.350 T
Therefore,
μ/μ₀= μ_r
μ= μ_r x μ₀
B= μ_rμ₀NI/2πR
0.350=1400x4x 3.14x500xI/2xπx2.90
I=72.mA
 

f₀/f_e ​​=9,         ∴f₀​=9f_e​
Also f_0​+f_e​=20             (∵ final image is at infinity)
9f_e​+f_e​=20,f_e​=2cm,
∴f₀​=18cm

In A stretched bow. Compressed gas, compressed or elongated spring there is elastic potential energy but the lifted weight there is gravitational force, so the odd one here is lifted weight.

Progressive education advocates that young learners should be given the freedom to learn according to their preferences and likes

One of the oldest arguments in the history of psychology is the 'nature vs nurture' debate. Each of these sides has good point that it is really hard to decide whether a person's development is predisposed in his DNA, or a majority of it is influenced by his life's experiences and his environment. 

Ankit, a 12 years boy, is not enrolled in school due to some circumstances. He has requisite computational skills and intends to enroll in a school to learn. Ankit has an aptitude for learning.

• An aptitude test is designed to assess what a person is capable of doing or to predict what a person is able to learn or do given the right education and instruction.
• It represents a person's level of competency to perform a certain type of task.
• Aptitude can be defined as someone’s natural ability to do something.
• Teaching aptitude, hence, refers to an individual’s innate ability in teaching.
• It can also be defined as the ability of a person to teach, once they are given the necessary training.

Therefore, we can conclude that Ankit, a 12 years boy, is not enrolled in a school due to some circumstances. He has requisite computational skills and intends to enroll in a school to learn. Ankit has an aptitude for learning.

The correct spelling is "referendum". It means a vote on a topic by the people. 
Example-  The referendum on Brexit has been quite a disastrous one.

The sentence seems to say that the person in concern was expecting a surprise on his birthday and not accepting it. Expect means to want or wish for something whereas accepting means to receive or recognize some issue.
Thus option 2 is correct.

The given sentence is in the active voice. The correct conversion to passive voice is given in option 2. Options 1 and 4 change the meaning of the given sentence and option 3 gives an incomplete conversion. 

'पानी न बरसता तो धान सूख जाता'- यह 'संकेतवाचक वाक्य' है।Key Points

• संकेतवाचक वाक्य - जिन वाक्यों से संकेत का बोध होता है।
• उदाहरण - अगर वर्षा होती तो फसल भी अच्छी होती।

Additional Informationअर्थ के आधार पर वाक्य के आठ भेद है।