CBSE Class 12 Physics Chapter-10 Important Questions – Free PDF Download
Free PDF download of Important Questions with Answers for CBSE Class 12 Physics Chapter 10 – Wave Optics 1 Mark Questions prepared by expert Physics teachers from latest edition of CBSE(NCERT) books only by CoolGyan to score more marks in CBSE board examination.
CBSE Class 12 Physics Chapter-10 – Wave Optics
CBSE Class 12 Physics Important Questions Chapter 10 – Wave Optics
1 Mark Questions
1. Draw a diagram to show cylindrical wave front?
Ans.
2. A light wave enters from air to glass. How will the following be affected:
(i) Energy of the wave
(ii) Frequency of the wave:
Ans. (1) A part of light is reflected back into the air. Thus energy of the wave will be lower in the glass.
(2) Frequency of the wave remains unchanged.
3. What is the Brewster angle for air to glass transition? 
Ans.
4. What is the shape of the wave front when light is diverging from a point source?
Ans.Spherical
5. State the conditions that must be satisfied for two light sources to be coherent?
Ans.(1) They must emit waves continuously of same wavelengths.
(2) The phase difference between the waves must be zero or constant
6. In young’s double slit experiment. The distance between the slits is halved, what change in the fringe width will take place?
Ans. 
