Question

A camera is supplied with two interchangeable lenses, whose focal lengths are 21.0 and 150.0 mm....

A camera is supplied with two interchangeable lenses, whose focal lengths are 21.0 and 150.0 mm. A woman whose height is 1.70 m stands 8.60 m in front of the camera. What is the height (including sign) of her image on the image sensor, as produced by (a) the 21.0-mm lens and (b) the 150.0-mm lens?

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Answer #1

We know that the image magnification is given by

M = v/u

H = f/f+u * H0

H = 4.14 mm

B) With 150 mm lense

H = 29.14 mm

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