Question

while passing through a glass desk angle of reflection is less than angle of incidence of a light ray why???

Answer 1

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Ans:✍️✍️✍️✍️✍️✍️✍️

⚫️When a light ray passing through a glass desk it means the light ray travel from air to glass desk so that it travels from rarer medium to denser medium..

⚫️ in this case the light ray bends towards normal at the interface of air and glass disc.

⚫️ so that angle of refraction is less than angle of incidence..❤️❤️

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Answer 2

Answer :

While passing through a glass desk, angle of reflection is less than angle of incidence of a light ray because the light ray bends towards normal at the interface of glass disc and air.

Explanation :

When the ray passes through a glass desk, it shows that the medium is being changed i.e., the light ray travels from rarer medium to denser medium.

This causes the bending of light towards the normal.

While if it was the case of denser medium to rarer medium the light ray would have moved away from the normal.