Optics Question 669
Question: The sun makes 0.5o angle on earth surface. Its image is made by convex lens of 50 cm focal length. The diameter of the image will be
[CPMT 2003]
Options:
A) 5 mm
B) 4.36 mm
C) 7 mm
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
Diameter of image $ d=( 0.5\times \frac{\pi }{180} )\times 500 $ = 4.36 $ mm $
