Optics Question 689
Question: The focal lengths of convex lens for red and blue light are 100 cm and 96.8 cm respectively. The dispersive power of material of lens is
[Pb. PET 2003]
Options:
A) 0.325
B) 0.0325
C) 0.98
D) 0.968
Show Answer
Answer:
Correct Answer: B
Solution:
Putting value of
