To obtain pure spectrum, the condition is that

Options :
  1. prism is in the position of minimum deviation
  2. rays of light incident on the prism are parallel to each other
  3. prism is in the position of minimum deviation and the white light rays incident on the prism are parallel to each other and the emergent rays are focused by a convex lens on a screen
  4. the light source is monochromatic
Answer and Explanation :-

Answer: Option 3

Explanation:

Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : The case of scattering is that

Next Question : The function of telescope in a spectrometer is

Click here for online test on Optical Physics

Responses


 (Getemail alerts when others member replies)







A revolution is coming - a revolution which will be peaceful if we are wise enough compassionate if we care enough successful if we are fortunate enough - but a revolution which is coming whether we will it or not. We can affect its character we cannot alter its inevitability.
-John F. Kennedy Profiles in Courage