The intensity of light falling on the film in a camera depend on the i. brightness of the object. ii. diameter of the aperture stop. iii. speed of the shutter. Which of the statements is/are correct/
A
i, ii and iii
B
i and iii only
C
i and ii only
D
ii and iii only
E
iii only
Verified Correct Answer: E.
Physical Principles & Numerical Solution
iii. Speed of the shutter: This directly controls how long the film is exposed to the incoming light. A faster shutter speed reduces the time light falls on the film, thereby reducing the intensity (light per unit time) effectively recorded.
Source: Myschool Past Questions Archive (Record #33640)