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A pinhole camera is placed 300m in front of a building so that the image is form...


Question

A pinhole camera is placed 300m in front of a building so that the image is formed on a screen 5cm from the the pinhole. If the image is 2.5cm high, the height of the building will be

Options

A) 25m

B) 50m

C) 100m

D) 150m


The correct answer is D.

Explanation:

==> \(\frac{v}{u}\) = \(\frac{hi}{ho}\)

==> \(\frac{5}{300}\) = \(\frac{2.5}{ho}\)

= 150m


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