﻿ The sun (diameter = D) subtends an angle of θ radians at the pole of a concave mirror of focal length f. The diameter of the image of the sun formed by the mirror is:  : Kaysons Education

# The Sun (diameter = D) Subtends An Angle Of θ radians At The Pole Of A Concave Mirror Of Focal Length f. The Diameter Of The Image Of The Sun Formed By The Mirror Is:

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## Question

### Solution

Correct option is Since the sun is very distant, u is very large and so (1/u) is practically zero. So i.e., the image of sun will be formed at the focus and will be real, inverted and diminished.

Now as the rays from the sun subtend an angle θ radians at the pole, hence according to figure, we have  (where d = diameter of the image of the sun) #### SIMILAR QUESTIONS

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