A man is sitting on a chair in a dark room near one of the walls. A big mirror is hung on the wall facing the man. When a torchlight is put on the man from a distance, then we can see X of the man on the wall behind him. At the same time, Y of the man can be observed in the mirror on the wall.
(a) What is X?
(b) What is Y?
(c) State one way in which X differs from Y.
Important Questions on Light, Shadows, and Reflections
Name the most important source of light for the earth.
Name two natural sources of light and two man-made sources of light.
The moon is a luminous object.
A pinhole camera uses a lens to form a real and inverted image.
What name is given to the object through which we cannot see at all?
What name is given to the object through which we can see but not clearly?
What name is given to the object through which we can see clearly?
Give one example of an object through which we can see clearly.
