# Ray Optics And Optical Instruments

Assertion

Reason

## The scattered blue component of white light is mixed with yellow, the colour becomes white.

A
Assertion is True. Reason is also True and is the correct explanation of the Assertion.
B
Assertion is True. Reason is also True but is not the correct explanation of Assertion.
C
Assertion is True and Reason is False
D
Assertion is False and Reason is True
Hard
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## A ray monochromatic light is incident on the face of prism near vertex at an incident angle of (see figure). If the refractive index of the material of the prism is , which of the following is (are) correct?

A
The ray gets totally internally reflected at face CD
B
The ray comes out through face AD
C
The angle between the incident ray and the emergent ray is 90
D
The angle between the incident ray and the emergent ray is 120
Hard
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## Consider an optical system placed in water PQRS is a hollow glass slab filled with air This slab is kept on the principle axis of a lens in such a way that surface PS makes an angle with the axis of the lens. , then

A
for transmission of light takes place through slab sin
B
for transmission of light through slab sin
C
for cm final image is at 3m distance from O
D
for cm final image is at 3m distance from O
Hard
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