Top 1000+ Physics MCQS - 2

Question: 6

The focal length of the lens in a photographic camera is 5cm. what is the power of the lens?

(A) +5 D

(B) +10 D

(C) +15 D

(D) +20 D

Question: 7

The time period of the revolution of the geostationary satellite around the earth is

(A) twice that of the earth

(B) equal to that of the moon

(C) equal to that of the earth

(D) none of the above

Question: 8

A pendulum beats faster than a standard pendulum. In order to bring it to the standard beat, the length of the pendulum is to be

(A) reduced and mass of the bob increased

(B) reduced and also the mass of the bob reduced

(C) increased

(D) reduced

Question: 9

Which of the following produce a virtual image longer in size than the object?

(A) Concave lens

(B) Convex lens

(C) Concave mirror

(D) (b) and (c) both

Question: 10

Parsec is the unit of

(A) magnetic force

(B) shining of light

(C) distance

(D) time