Question

Hello people ~
Resolving power of telescope can be increased by increasing
(a) the wavelength
(b) the diameter of objective
(c) the diameter of eyepiece
(d) the focal length of eyepiece​

Answer 1

Answer:

The diameter of the objective

Explanation:

Let's see how?

• Resolving power be R

• Diameter be d
• Wavelength be lambda

$\\ \rm\rightarrowtail R=\dfrac{d}{1.22\lambda}$

Hence

$\\ \rm\rightarrowtail R\propto d$

• So if d is more R is more