1
NDA General Ability 21 April 2024
+4
-1.33

Which one of the following about different frictional forces is correct?

A

Kinetic friction > Static friction > Rolling friction

B

Static friction > Rolling friction > Kinetic friction

C

Static friction > Kinetic friction > Rolling friction

D

Static friction > Kinetic friction = Rolling friction

2
NDA General Ability 21 April 2024
+4
-1.33

A metallic bob X of mass m is released from position A. It collides elastically with another identical bob Y placed at rest at position B on a horizontal frictionless table. The angle AOB is 30°.

How high does the bob X rise immediately after the collision?

A

To the same height as that of position A on the other side in the same trajectory

B

To half the height as that of position A on the other side along the same trajectory

C

The same height at position A

D

It stops at position B

3
NDA General Ability 21 April 2024
+4
-1.33

Consider the two statements given below:

Statement-1 : Infrared waves are also called heat waves.

Statement-2 : Water molecules readily absorb infrared waves.

Select the correct answer using the code given below :

A

Both the statements are individually true and Statement-2 is the correct explanation of Statement-1.

B

Both the statements are individually true, but Statement-2 is not the correct explanation of Statement-1.

C

Statement-1 is true, but Statement-2 is false.

D

Statement-2 is true, but Statement-1 is false.

4
NDA General Ability 21 April 2024
+4
-1.33

If the block P as shown in the figure below were to be at rest, what should the magnitude of force F be?

A

5 N

B

6 N

C

8 N

D

10 N

EXAM MAP
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