How to calculate angle of refraction when angle of incidence and angle of emergence is given?

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Solution

Angle of refraction = (Angle of incidence) + (Angle of emergence)

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Similar questions

Q. In an experiment to study the refraction of light through a rectangular glass slab, a student measured the angle of incidence, angle of refraction and the angle of emergence. The student lost the reading of angle of incidence but noted the readings of angle of refraction to be 35° and angle of emergence to be 65°. The angle of incidence is likely to be:
(1) 45°
(2) 55°
(3) 35°
(4) 65°

Q. Statement 1: Angle of incidence is greater than the angle of refraction.
Statement 2: Angle of incidence is lesser than the angle of refraction.
Statement 3: Angle of emergence is equal to the angle of incidence.
Which of the following is/are correct with respect to refraction in a glass slab?

Draw a ray diagram to show the refraction of a monochromatic ray through a prism when it suffers minium deviation. How is the angle of emergence related to the angle of incidence in this position?

Q. The angle of deviation through a prism is minimum when

(A) Incident ray and emergent ray are symmetric with respect to the prism.
(B) The refracted ray inside the prism becomes parallel to its base.
(C) Angle of incidence is equal to angle of emergence.
(D) When the angle of emergence is double the angle of incidence.
Choose the correct answer from the options given below:

Q. A teacher asked four students to record the observations of the experiment on tracing the path of a ray of light through a rectangular glass slab. The students recorded their observations under the following headings:
(1) Angle of incidence, Angle of refraction, Angle of reflection
(2) Angle of incidence, Angle of deviation, Angle of emergence
(3) Angle of incidence, Angle of reflection, Angle of emergence
(4) Angle of incidence, Angle of refraction, Angle of emergence
The correct observations were recorded by the student:
(1) A
(2) B
(3) C
(4) D

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