Optics Question 590
Question: The ray diagram could be correct
[CPMT 1988]
Options:
A) If $ n _{1}=n _{2}=n _{g} $
B) If $ n _{1}=n _{2} $ and $ n _{1}<n _{g} $
C) If $ n _{1}=n _{2} $ and $ n _{1}>n _{g} $
D) Under no circumstances
Show Answer
Answer:
Correct Answer: C
Solution:
If $ n _{l}>n _{g} $ then the lens will be in denser medium. Hence its nature will change and the convex lens will behave like a concave lens.
