Questions
The ratio of resolving powers of an optical microscope for two wavelengths and
a
9 : 4
b
3 : 2
c
16 : 81
d
8 : 27
detailed solution
Correct option is B
The resolving power of an optical microscope, RP=2μsinθλ For wavelength λ1=4000A0 , resolving power will be RP1=2μsinθ4000 . . . . (i) For wavelength λ2=6000A,0 resolving power will be RP2=2μsinθ6000 . . . .(ii)On dividing eqn. (i) by eqn. (ii) RP1RP2=60004000=32Talk to our academic expert!
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A human pupil has a radius of 0. 25 cm and a comfortable viewing distance of 25 cm, the minimum separation between two objects that human eye can resolve for a light of 500 nm wavelength is:
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