NEET Solved Paper 2017 Question 21
Question: The ratio of resolving powers of an optical microscope for two wavelengths $ {\lambda_1}=4000,\overset{o}{\mathop{A}}, $ and $ {\lambda_2}=6000,\overset{o}{\mathop{A}}, $ is
Options:
A) 16 : 81
B) 8 : 27
C) 9 : 4
D) 3 : 2
Show Answer
Answer:
Correct Answer: D
Solution:
- Resolving power $ \propto \frac{1}{\lambda } $ $ \frac{R _1}{R _2}=\frac{{\lambda_2}}{{\lambda_1}} $ $ =\frac{6000\overset{o}{\mathop{A}},}{4000\overset{o}{\mathop{A}},} $ $ =\frac{3}{2} $
