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Critical Angle

State whether...

Question

State whether the following statement is true or false.
If the angle of incidence is greater than the critical angle, light is not refracted at all, when it falls on the surface from a denser medium to a rarer medium.

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Solution

The statement is true.

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Similar questions

Q. Mark the correct statement/statements:
a) Angle of incidence is equal to angle of refraction
b) Angle of refraction is smaller than angle of incidence when light ray travels from rarer medium to denser medium.
c) Angle of refraction is greater than angle of incidence when light ray travels from denser medium to rarer medium.

Q. Which of the following conditions are necessary for total internal reflection to take place at the boundary of two optical media ?
1. Light is passing from optically denser medium to optically rarer medium.
2. Light is passing from optically rarer medium to optically denser medium.
3.Angle of incidence is greater than the critical angle.
4.Angle of incidence is less than the critical angle.

Q. When light enters from denser medium to rarer medium at an angle greater than critical angle, it reflects back. This phoenomenon is called

Q. A light ray is incident from a denser medium on the boundary separating it from a rarer medium at an angle of incidence equal to the critical angle. What is the angle of refraction for the ray?

Q. Which of the following are the essential conditions for Total Internal Reflection to take place?
A. Ray of light should travel from rarer medium to denser medium.
B. Ray of light should travel from denser medium to rarer medium.
C. Angle of incidence should be greater than the critical angle.
D. Critical angle must be greater than the angle of incidence.

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