Science, asked by suryavkasthuri81, 5 months ago

Which of the following is not always necessary to observe a shadow? *

a. Sun
b. Screen
c. Source of light
d. Opaque object

Answers

Answered by sana0707
4

(a) 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.

Answered by ajha83671
4

Explanation:

screen is the answers ok

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