Optics Question 821
Question: A thin convex lens of focal length 10 cm and refractive index 1.5 is cut vertically into two equal pieces. They are placed as shown with a liquid of refractive index 3 between them. What is the focal length of the combination?
Options:
A) -10cm.
B) -10/4 cm.
C) -10/3 cm.
D) None of these
Show Answer
Answer:
Correct Answer: C
Solution:
[c]
