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```
The sun sub stends an angle teta radian on the surface of the earth.if a convex lens of focal length F is used to obtain in a real image of the sun on a screen , the diameter of the imagewill be a)f teta b)f teta /2 c)f/teta d)2f teta

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one year ago

## Answers : (1)

Arun
25311 Points
```							 Since the object distance → so, the Image can be assumed to form at the focus. So,$r/f = tan(x/2)$where r is the radius of image, and “x” is the angle substended by the object, i.e. Sun.So, $d = 2r = 2ftan (x/2)$ Hipe ot helps
```
one year ago
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