UPSC CAPF 2021 General Ability and Intelligence Question Paper (08-Aug-2021)

Question 1

The time elapsed between viewing a lightning flash and hearing the thunder of a cloud is $10	ext{ s}$. If the speeds of sound and light in air are $330	ext{ m/s}$ and $3	imes10^{8}	ext{ m/s}$ respectively, how far away is the storm?

Accepted Answer

About $3300	ext{ m}$

Answer

About $1650	ext{ m}$

Answer

About $990	ext{ m}$

Answer

About $1000	ext{ m}$

Question 2

What is the approximate wavelength of violet light in air?

Accepted Answer

$0\cdot4	ext{ }\mu	ext{m}$

Answer

$0\cdot7	ext{ }\mu	ext{m}$

Answer

$0\cdot6	ext{ }\mu	ext{m}$

Answer

$0\cdot5	ext{ }\mu	ext{m}$

Question 3

Which electromagnetic radiation(s) is/are used to cook food?

Accepted Answer

Infrared and microwave radiations

Answer

Infrared radiation only

Answer

Microwave radiation only

Answer

All electromagnetic radiations

Question 4

An object is placed $10	ext{ cm}$ in front of a lens. The image formed is real, inverted and of same size as the object. What is the focal length and nature of the lens?

Accepted Answer

$5	ext{ cm}$, converging

Answer

$10	ext{ cm}$, diverging

Answer

$20	ext{ cm}$, converging

Answer

$20	ext{ cm}$, diverging

Question 5

Which one of the following statements with regard to a short-sighted person is correct?

Accepted Answer

A short-sighted person sees the near objects clearly but distant objects blurred and a concave lens is used to correct this defect.

Answer

A short-sighted person sees the near objects blurred but distant objects clearly and a convex lens is used to correct this defect.

Answer

A short-sighted person sees the near objects blurred but distant objects clearly and a concave lens is used to correct this defect.

Answer

A short-sighted person sees the near objects clearly but distant objects blurred and a convex lens is used to correct this defect.

UPSC CAPF 2021 General Ability and Intelligence Question Paper (08-Aug-2021)

UPSC CAPF (Assistant Commandants) 2026 Mock Test Series