Optics 6 Question 6
7. The focal lengths of the objective and the eyepiece of a compound microscope are
(a) 2.4 and 12.0
(b) 2.4 and 15.0
(c) 2.0 and 12.0
(d) 2.0 and 3.0
Show Answer
Answer:
Correct Answer: 7. (d)
Solution:
- Let intensity of each wave is
Then, intensity at the centre of bright fringe will be
Given, path difference,
Intensity of light at this point,
Now,
