Resolving power of telescope increases whenA) wavelength of light decreasesB) wavelength of light increasesC) focal length of eye-piece increasesD) focal length of eye-piece decreases

Home » Resolving power of telescope increases whenA) wavelength of light decreasesB) wavelength of light increasesC) focal length of eye-piece increasesD) focal length of eye-piece decreases

Resolving power of telescope increases when
A) wavelength of light decreases
B) wavelength of light increases
C) focal length of eye-piece increases
D) focal length of eye-piece decreases

Physics

Resolving power of telescope increases when
A) wavelength of light decreases
B) wavelength of light increases
C) focal length of eye-piece increases
D) focal length of eye-piece decreases

Answer is (A)
Resolving power of telescope is given by
$\mathrm{P}=\frac{\mathrm{d}}{1.22 \lambda}$
When $\lambda$ decreases, resolving power decreases and vice versa

i

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