RRB GROUP D Physics Quiz

Question 1:

A ball is thrown vertically upwards. Which of the following plots represents the speed-time graph of the ball during its flight if the air resistance is not ignored?

Question 2:

Why are the ceilings of concert halls, conference rooms and cinema halls made curved?

To save money

To maintain equality in all buildings

To transmit sound to all parts of the hall after the reflection of sound

To work the effect of incense

Question 3:

Light year is defined as-

the distance travelled by light in free space in one year

the mean distance between the earth and sun

light emitted by the sun in one year

time taken by light to travel from sun to earth

Question 4:

Which of the following is a vector quantity?

Momentum

Pressure

Work

Energy

Question 5:

If a physical quantity has the units - ampere meters per second squared, then what is its dimensions?

[{ALT}^{- 2}]

[{ALT}^{- 2}]

[{IMS}^{- 2}]

[{IMS}^{- 2}]

[{AMS}^{- 2}]

[{AMS}^{- 2}]

[{ILT}^{- 2}]

[{ILT}^{- 2}]

Question 6:

What will be the effect on the density of milk if its cream is removed. its density-

Remains same

Increases

Decreases

May increase or decrease

Question 7:

Which of the following is the motion in which an object moves such that its distance from a fixed point remains the same?

Periodic motion

Circular motion

Rotational Motion

Rectilinear Motion

Question 8:

A bullet of mass 10 g is fired with a velocity of 50m/s from a gun of mass 2kg. Find the recoil velocity (in m/s) of the gun.

0.1

0.25

0.2

0

Question 9:

Which of the following has a negative charge?

X-ray

Alpha particle

Beta particle

Gamma particle

Question 10:

There are three equations of motion that can be used to derive components such as displacement(s), velocity (v), time(t) and acceleration(a). The third equation of motion gives the relation between

Velocity and Time

Position and Time

Velocity and Distance

Velocity, Time and Distance

RRB GROUP D Physics Quiz - 73

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RRB GROUP D Physics Quiz - 73

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