The light-gathering power of a camera lens depends on - Vidyadip

MCQ

The light-gathering power of a camera lens depends on

✓
its diameter only
B
the ratio of diameter and focal length
C
product of focal length and diameter
D
the wavelength of the light used

✓

Answer

Correct option: A.

its diameter only

its diameter only
Hint:
The light-gathering power of a camera lens is proportional to its area or to the square of its diameter.

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