NDA General Ability 4 September 2022 | Physics Question 348 | General Science

General Science

Physics

Chemistry

Biology

NDA General Ability 4 September 2022

MCQ (Single Correct Answer)

-1.33

A bullet of mass 10 g is horizontally fired with velocity 300 m s^-1 from a pistol of mass 1 kg. What is the recoil velocity of the pistol?

0.3 m s^-1

3 m s^-1

-3 m s^-1

-0.3 m s^-1

NDA General Ability 4 September 2022

MCQ (Single Correct Answer)

-1.33

A microphone converts

electrical signals to sound waves

sound waves to electrical signals

microwaves to sound waves

sound waves to microwaves

NDA General Ability 10 April 2022

MCQ (Single Correct Answer)

-1.33

Inhabitants are unaware of the speed of rotation of the planet Earth because

1. the angular velocity is constant for each place on the Earth's surface

2. the atmosphere rotates with the Earth

3. there are no nearby objects, either stationary or moving at a rate different from that of the Earth

Which of the above is/are the correct explanation(s)?

1 only

1 and 2 only

2 and 3 only

1, 2 and 3

NDA General Ability 10 April 2022

MCQ (Single Correct Answer)

-1.33

The twinkling of a star is due to the atmospheric

diffraction of starlight

reflection of starlight

refraction of starlight

Scattering of starlight

Questions Asked from Marks 4