JAMB - Physics (2024 - No. 91)
I clear II sharp III poor IV dark
Which of the above happens when the hole of a pinhole camera is diminished?
I only
II only
I and II only
III and IV only
Shpjegimi
When the hole of a pinhole camera is diminished, the image becomes II sharp. A smaller aperture reduces the amount of light entering, leading to a sharper image, but it also requires more light for proper exposure.