NDA 2015 Paper 2 | Physics Question 11 | General Science

NDA 2015 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

In SI unit of force 'newton' (N) is given by (where, 'kg' stands for 'kilogram' 'm' stands for 'metre' and 's' stands for 'second')

1 N = 2 kg-ms^$$-$$2

1 N = 1 kg-ms^$$-$$2

1 N = 4 kg-ms^$$-$$2

1 N = 3 kg-ms^$$-$$2

NDA 2015 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

The acceleration due to gravity 'g' for objects on or near the surface of earth is related to the universal gravitational constant 'G' as ('M' is the mass of the earth and 'R' is its radius)

$$G = {{gM} \over {{R^2}}}$$

$$g = {{GM} \over {{R^2}}}$$

$$M = {{gG} \over {{R^2}}}$$

$$R = {{gG} \over {{M^2}}}$$

NDA 2015 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

The loudness of sound is related to

its frequency

its amplitude

its speed

its pitch

NDA 2015 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

X-rays are electromagnetic radiation whose wavelengths are of the order of

1 m

10^$$-$$1 m

10^$$-$$5 m

10^$$-$$10 m

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