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1. On rotating the analyzer if the intensity of light rays coming out of it varies from maximum to zero, then the incident beam of light is

A. un-polarized

B. plane polarized

C. partially polarized

D. polarized

Explanation:

2. On rotating the analyzer, if the rays coming out of it has same intensity, then the incident beam is

A. plane polarized

B. partially polarized

C. un-polarized

D. polarized

Explanation:

3. On rotating the analyzer, if the rays coming out of it has the intensity varies from maximum to minimum, then the incident light is

A. un-polarized

B. plane polarized

C. partially polarized

D. polarized

Explanation:

4. Double diffraction phenomenon was first observed by

A. Newton

B. Fresnel

C. Bartholinus

D. Brewster

Explanation:

5. A device used to get plane polarized light is

A. grating

B. spectrometer

C. polarizer

D. pyroheliometer

Explanation:

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