Optics Question 702
Question: The dispersive power of the material of lens of focal length 20 cm is 0.08. The longitudinal chromatic aberration of the lens is
[EAMCET 2005]
Options:
A) 0.08 cm
B) 0.08/20 cm
C) 1.6 cm
D) 0.16 cm
Show Answer
Answer:
Correct Answer: C
Solution:
Longitudinal chromatic aberration = $ \omega f=0.08\times 20 $
$ =1.6cm $ .
