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Snell's Law and Refractive Index

When light tr...

Question

When light travels from an optically rarer medium to a denser medium,
(a) it bends away from the normal.
(b) it bends towards the normal.
(c) it remains undeviated.
(d) it is laterally displaced.

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Solution

(b) It bends towards the normal
When light travels from an optically rarer medium to a denser medium, it bends towards the normal. This happens due to refraction.

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Q. When light travels from an optically denser medium to a rarer medium.
(a) it bends away from the normal.
(b) it bends towards the normal.
(c) it is undeviated.
(d) it is laterally displaced.

Q. When light ray travels from a rarer medium to a denser medium, it bends _______ the normal.

Q. When a ray of light travels from optically denser medium to optically rarer medium, it always bends ____ the normal.

When a ray of light from air enters a denser medium, it :

(a) bends away from the normal

(b) bends towards the normal

(c) goes undeviated

(d) is reflected back.

Q. Fill in the blanks :

A light ray travelling obliquely from a denser medium to a rarer medium bends ................... the normal. A light ray bends ................... the normal when it travels obliquely from a rarer to a denser medium.

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