1
NDA General Ability 21 April 2024
+4
-1.33

Which one of the following does not apply to sound waves in fluids?

A

They transport energy

B

They need a medium to travel

C

They are transverse

D

They travel faster in liquids than in gases

2
NDA General Ability 21 April 2024
+4
-1.33

A ball of 0.1 kg mass is dropped on a hard floor from a height of 0.45 m and rises to a height of 0.2 m. If it was in touch with the floor for 0.1 s, the net force it applied on the floor while bouncing is : (take the gravitational acceleration g = 10 m s⁻²)

A

1.0 N

B

6.0 N

C

3.0 N

D

5.0 N

3
NDA General Ability 21 April 2024
+4
-1.33

Which one of the following statements regarding simple pendulum is correct?

Simple pendulum has a time period independent of amplitude:

A

only for small amplitudes because then the net force on its bob is independent of its displacement.

B

for any amplitude because the net force on the bob is always proportional to its displacement.

C

for any amplitude because the net force on the bob is independent of its displacement.

D

only for small amplitudes because then the net force on its bob is proportional to its displacement.

4
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

EXAM MAP
Medical
NEET