An experiment for tracing the path of a ray of light through a glass slab was set up in the laboratory and ray diagram was drawn as shown here. The teacher asked the students to identify the refracted ray. The correct answer is :

(1) SR
(2) RQ
(3) N₁N₂
(4) QP

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Solution

When a light ray is passed through a rectangular glass slab, it refracts at the boundary of the slab and bends towards the normal. So, in the given figure, SR is the incident ray falling on the glass slab and RQ is the refracted ray bending towards the normal upon entering the slab.

Hence, the correct answer is option 2.

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An experiment for tracing the path of a ray of light through a glass slab was set up in the laboratory and ray diagram was drawn as shown here. The teacher asked the students to identify the refracted ray. The correct answer is : (1) SR (2) RQ (3) N1N2 (4) QP

An experiment for tracing the path of a ray of light through a glass slab was set up in the laboratory and ray diagram was drawn as shown here. The teacher asked the students to identify the refracted ray. The correct answer is :

(1) SR
(2) RQ
(3) N₁N₂
(4) QP