NDA General Ability 21 April 2024 | Physics Question 262 | General Science

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NDA General Ability 21 April 2024

MCQ (Single Correct Answer)

-1.33

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

They transport energy

They need a medium to travel

They are transverse

They travel faster in liquids than in gases

NDA General Ability 21 April 2024

MCQ (Single Correct Answer)

-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)

1.0 N

6.0 N

3.0 N

5.0 N

NDA General Ability 21 April 2024

MCQ (Single Correct Answer)

-1.33

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

Simple pendulum has a time period independent of amplitude:

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

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

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

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

NDA General Ability 21 April 2024

MCQ (Single Correct Answer)

-1.33

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

Kinetic friction > Static friction > Rolling friction

Static friction > Rolling friction > Kinetic friction

Static friction > Kinetic friction > Rolling friction

Static friction > Kinetic friction = Rolling friction

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