The most central and darkest part of a shadow is called an_______.

(A) Penumbra
(B) Solar eclipse
(C) Lunar eclipse
(D) Umbra [1 Mark]

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Solution

The most central and darkest part of a shadow is called an umbra. If you aim a light source directly at an object, the blackest portion of the shadow directly behind the object is the umbra of the shadow.
Hence option D is correct.
[1 Mark]

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Similar questions

Write answers the following questions.

(a) Why does an object cast a shadow on a screen?

(b) What is the connection between the formation of shadows and the propagation of light?

(d) When does a solar eclipse take place?

which statement is not true?

a)during a solar lunar eclipse,the dark side of yhe moon faces earth

b)a lunar eclipse occurs on a new moon day only

c)a total solar eclipse cannot be seen if the umbra doesn't fall on earth

d)both solar and lunar eclipse take place only once in calender year

Differentiate between a solar eclipse and a lunar eclipse.

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