The size of the Moon _________ after new-moon.
gradually increases
gradually decreases
The size of moon increases gradually after new moon. It becomes full moon after approximately 14 days and again its size starts reducing.
As the angle between two plane mirrors is decreased gradually, the number of images of an object placed between them:
(a) increases gradually
(b) decreases gradually
(c) first increases then decreases
(d) first decreases then increases
When an object moves towards a convex lens from beyond 2F upto F, the size of the image _____________. (a) decreases (b) increases (c) remains the same (d) first decreases then increases