A ray of light strikes the glass slab at an angle $40 °$ with the surface of the slab. Then the angle of incidence will be ____ $°$

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Solution

The correct option is B 50
A ray of light strikes the glass slab at an angle 40° with the surface of the slab. Then the angle of incidence will be 50°.

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A ray of light strikes the glass slab at an angle 40° with the surface of the slab. Then the angle of incidence will be ____°

The correct option is B 50A ray of light strikes the glass slab at an angle 40° with the surface of the slab. Then the angle of incidence will be 50°.

A ray of light strikes the glass slab at an angle $40 °$ with the surface of the slab. Then the angle of incidence will be ____ $°$

The correct option is B 50
A ray of light strikes the glass slab at an angle 40° with the surface of the slab. Then the angle of incidence will be 50°.