Question

The aperture of the objective is 24.4 cm. The resolving power of this telescope. If a light of wavelength 2440 Å is used to see the object will be ______.

विकल्प

• 8.1 × 10⁶ 

• 10.0 × 10⁷ 

• 8.2 × 10⁵ 

• 1.0 × 10^-8 

Answer 1

The aperture of the objective is 24.4 cm. The resolving power of this telescope. If a light of wavelength 2440 Å is used to see the object will be 8.2 × 10⁵.

Explanation:

Resolving power is given by

R.P = `"d"/(1.22lambda)`

= `(24.4xx10^-2)/(1.22xx2440xx10^-10)`

= 8.2 × 10⁵