Home Maths Differentiation and Applications of Derivatives Hard A man of height 1.8 metre is moving away fro…
Maths Differentiation and Applications of Derivatives Hard Single Correct MCQ
Published on: August 14, 2026

A man of height 1.8 metre is moving away from a lamp post at the rate of 1.2 If the height of the lamp post be 4.5 metre , then the rate at which the shadow of the man is lengthening is

A
B
C
D
None of these

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Text Solution

Verified by Experts
The correct answer is:
B

.

According to the figure

⇒ ⇒

Required rate of length of shadow .

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