To form a shadow, the things required are: a source of light, an opaque object and a screen.
Hence, the given statement is true.
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
A _________ source of light produces a sharp dark shadow of an opaque object.