Question

which object is always not necessary to observe a shadow
a)sun
b) screen
c) source of light
d) opaque object​

Answer 1

Answer:

source of light

Hope it is helpful for you...

Answer 2

Explanation:

Sun is not always necessary to observe a shadow because any source of light, an opaque object and a screen are just necessary enough to see a shadow. Question 5: Paheli observed the shadow of a tree at 8:00 am, 12:00 noon and 3:00 pm.