A _________ source of light produces a sharp dark shadow of an opaque object.
Hence, a point source of light produces a sharp dark shadow of an opaque object.
To form a shadow, the things required are: a source of light, an opaque object and a screen.
What does these lines mean- the fact that a small source of light casts a sharp shadow of an opaque object points to this straight line path of light, usually indicated as a ray of light.
Why do the opaque objects cast a dark shadow?
Name the things other than a source of light and opaque object required to see the shadow.
Which of the following is/are not always necessary to observe a shadow?
(a) Sun
(b) Screen
(c) Source of light
(d) Opaque object