If for a pair of media- the value of sin i -sin r is greater than 1 - then which of the following statement is true-A- If light goes from medium A to medium B- it will bend towards the normalB- If light goes from medium A to medium B- it will bend away from the normalC- If light goes from medium A to medium B its speed reducesD- If light goes from medium B to medium A its speed increases

The correct option is A If light goes from medium A to medium B, it will bend towards the normal sin i/sin r = v_1/v_2 nbsp; Hence, if the value is greater t ...

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Standard XII

Physics

History of Snell's Law

If for a pair...

Question

If for a pair of media, the value of $\frac{s i n i}{s i n r}$ is greater than 1, then which of the following statement is true?

If light goes from medium A to medium B, it will bend towards the normal

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If light goes from medium A to medium B, it will bend away from the normal

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If light goes from medium A to medium B its speed reduces

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If light goes from medium B to medium A its speed increases

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Solution

The correct option is A
If light goes from medium A to medium B, it will bend towards the normal

$\frac{s i n i}{s i n r} = \frac{v_{1}}{v_{2}}$
Hence, if the value is greater than 1, it implies
$v_{1} > v_{2} .$
So, the medium the light is entering into has a lower velocity of light in it. So, the ray will bend towards the normal.

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Similar questions

A light ray is passing from medium $A$ to $B$ and $\frac{s i n i}{s i n r}$ is greater than one. This implies:

Q. If a ray of light goes from a rarer medium to a denser medium, will it bend towards the normal or away from it?

Q. Light travelling from a denser medium to a rarer medium along a normal to the boundary:

(a) is refracted towards the normal
(b) is refracted away from the normal
(c) goes along the boundary
(d) is not refracted

Q. The following table gives the refractive indices of a few media:

	1	2	3	4	5
Medium :	Water	Crown glass	Rock salt	Ruby	Diamond
Refractive index :	1.33	1.52	1.54	1.71	2.42

Use this table to give an example of:

(i) a medium pair so that light speeds up when it goes from one of these medium to another.
(ii) a medium pair so that light slows down when it goes from one of these medium to another.

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

(a) bends away from the normal

(b) bends towards the normal

(d) is reflected back.

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If for a pair of media, the value of sin isin r is greater than 1, then which of the following statement is true?

The correct option is A If light goes from medium A to medium B, it will bend towards the normal sin isin r=v1v2 Hence, if the value is greater than 1, it implies v1>v2. So, the medium the light is entering into has a lower velocity of light in it. So, the ray will bend towards the normal.

If for a pair of media, the value of $\frac{s i n i}{s i n r}$ is greater than 1, then which of the following statement is true?