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Q.

Which of the following options is correct?


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a

The shadow of a pole will be shorter at sunset.

b

The shadow of a pole will be the longest at sunset.

c

The shadow of a pole doesn’t change over a day.

d

The shadow of a pole is the longest at noon. 

answer is B.

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Detailed Solution

The shadow of a pole will be the longest at sunset.
The position of the sun changes over a day because the earth rotates on its axis; hence days and nights occur. If the position of the sun for the pole changes, then the angle of light striking the pole is also changing. The shadow of the pole will be the longest at sunset as the sun is at least an angle at that time.
 
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