First slide

Ray optics

Question

The angular resolution of a 10 cm diameter telescope at a wavelength of 5000 Å is of the order of :

Easy

A

$10^{- 4} rad$
B

$10^{- 6} rad$
C

$10^{6} rad$
D

$10^{- 2} rad$

Solution

$\begin{array}{l} θ = \frac{1 .22 λ}{D} = \frac{1 .22 \times 5 \times 10^{- 7}}{0 .1} \\ = \frac{6 .1}{1} \times 10^{- 7} \\ = 6 \times 10^{- 7} = 10^{- 6} rad \end{array}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App