Optics Question 602
Question: A lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is
[CPMT 1991; NCERT 1979; BHU 2005]
Options:
A) Equal to unity
B) Equal to 1.33
C) Between unity and 1.33
D) Greater than 1.33
Show Answer
Answer:
Correct Answer: C
Solution:
$ {\mu _{air}}<{\mu _{lens}}<{\mu _{water}} $ i.e., $ 1<{\mu _{lens}}<1.33 $
