Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Explain giving reason, how the resolving power of a compound microscope depends on the (a) frequency of the incident light. (b) focal length of the objective lens.     

Explain giving reason, how the resolving power of a compound microscope depends on the
(a) frequency of the incident light.
(b) focal length of the objective lens. 

 

 

 

 
 
 
 
 

Answers (1)

The resolving power of the compound microscope is given as :

=\frac{2u\sin \theta }{1.22\lambda }

 

and     \lambda = c/v

there, resolving power =\frac{2u\sin \theta\times v }{1.22\; c }

(a) According to the formula,

R.P=\frac{2\times u\times \sin \theta \times v}{1.22\times c}

Since the frequency of the incident light will increase as the resolving power (R.P) is directly proportional to the frequency of light.

(b) Resolving power of the compound microscope is not independent of the focal length of the objective lens, instead, it varies inversely with the focal length of the objective lens,

as per the formula; d_{min}=\frac{1.22f\lambda }{D}

Since,

Resolving power =\frac{1}{d_{min}}=\frac{1}{\frac{1.22f\lambda }{D}}=\frac{D}{1.22f\lambda }

Hence,

Resolving power is inversely proportional to the focal length.

Posted by

Safeer PP

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
anam-khan

CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years

Latest Question