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The ratio of resolving powers of an opti...

The ratio of resolving powers of an optical microscope for two wavelengths `lambda_1=4000Å` and `lambda_2=6000Å` is

A

`8 : 27`

B

`9 : 4`

C

`3 : 2`

D

`16 : 81`

Text Solution

Verified by Experts

The correct Answer is:
C
As resolving power of an optical microscope varies inversely as wavelength of light used, therefore
`(RP_1)/(RP_2) = (lamda_2)/(lamda_1) = (6000)/(4000) = 3 : 2`.
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