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A man of height 'h' is walking away from a street lamp with constant speed 'v'.The height of the street lamp is 3h.The rate at which of the length of the man's shadow is increasing when he is at a distance of 10h from the base of the street lamp is

a)v/2

b)v/3

c)2v

d)v/6

Answers (1)

form two triangles shadow triangle and men . these two will be similar 

Now try to solve. 

Posted by

Safeer PP

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