Calculate the light of the image formed by a pinhole camera of length 12cm used to photograph an object 60cm away from the hole and 70cm high

Calculate the light of the image formed by a pinhole camera of length 12cm used to photograph an object 60cm away from the hole and 70cm high
A. 10 cm
B. 16 cm
C. 5 cm
D. 14 cm

Correct Option: Answer is D

Magnification = (Length of camera)/(distance of object from pin hole)

m = 12/60

= 0.2

Also magnification m = (Height of image)/(Height of object)

∴ Height of image = m × height of object

= 0.2 × 70

= 14cm

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