It is given that the value of sini-sin r when light enters from medium P to medium Q is less than 1 -ThenA- P is optically denser than QB- P and Q have same optical densityC- Not possibleD- Q is optically denser than P

The correct option is A P is optically denser than Q (sin i/sin r) lt; 1 = gt; sin i lt; sin r i.e., angle of incidence lt; angle of refraction. It ...

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Standard VIII

Physics

Snell's Law and Refractive Index

It is given t...

Question

It is given that the value of $\frac{s i n i}{s i n r}$ when light enters from medium P to medium Q is less than 1.Then

P is optically denser than Q

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Q is optically denser than P

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P and Q have same optical density

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Not possible

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Solution

The correct option is A
P is optically denser than Q

$(\frac{s i n i}{s i n r})$ < 1 => sin i < sin r
i.e., angle of incidence < angle of refraction. It means it bends away from the normal. When light enters from denser to rarer medium, light bends away from normal.

Hence, medium P is optically denser than Q.

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It is given that the value of sinisinr when light enters from medium P to medium Q is less than 1.Then

The correct option is A P is optically denser than Q (sin isin r) < 1 => sin i < sin r i.e., angle of incidence < angle of refraction. It means it bends away from the normal. When light enters from denser to rarer medium, light bends away from normal. Hence, medium P is optically denser than Q.

It is given that the value of $\frac{s i n i}{s i n r}$ when light enters from medium P to medium Q is less than 1.Then