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Standard IX

Physics

Refraction

When light is...

Question

When light is incident obliquely, from a medium of higher optical density to that of lower optical density,

the refracted ray deviates away from the normal

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the refracted ray deviates towards the normal

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the refracted ray does not deviate.

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the refracted ray can deviate in either ways

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Solution

The correct option is A
the refracted ray deviates away from the normal

When light is incident obliquely, from a medium of higher optical density to that of lower optical density, the refracted ray deviates away from the normal.

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Similar questions

When a ray of light travelling in glass enters into water obliquely : (a) it is refracted towards the normal (b) it is not refracted at all (c) it goes along the normal (d) it is refracted away from the normal

Q. Match the column if deviation in the column-II is the magnitude of total deviation (between incident ray and finally refracted or reflected ray) to lie between

0^{\circ}

and

180^{\circ}

. Here

n

represents refractive index of medium.

Column-I	Column -II
	(p) deviation in the light ray is greater than $90^{\circ}$
	(q) deviation in the light ray is less than $90^{\circ}$
	(r) deviation in the light ray is equal to $90^{\circ}$
	(s) Speed of finally reflected or refracted light is same as speed of incident light.

Q. (i) State Snell's law of refraction of light.
(ii) A transparent medium A floats on another transparent medium B, when a ray of lights travels obliquely from A into B, the refracted ray bends away from the normal. Which of the two media A and B is optically denser and why?

Q. Match the proper entries from column-2 to column-1 using the codes given below. Deviation in column-II is the magnitude of total deviation (between incident ray and finally refracted or reflected) which lie between

0^{0}

and

180^{0}

. Here

n

represents refractive index of medium.

	Column-I		Column-II
(P)		(1)	Deviation in the light ray is greater than $90^{0}$
(Q)		(2)	Deviation in the light ray is less than $90^{0}$
(R)		(3)	Deviation in the light ray is $90^{0}$
(S)		(4)	Speed of finally reflected or refracted light is same as that of incident light

Q. A ray of light falls on the surface of spherical glass paperweight making an angle

α

with the normal and is refracted in the medium at an angle

β

. The angle of deviation of the emergent ray from the incident ray is

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When light is incident obliquely, from a medium of higher optical density to that of lower optical density,

The correct option is A the refracted ray deviates away from the normal When light is incident obliquely, from a medium of higher optical density to that of lower optical density, the refracted ray deviates away from the normal.

The correct option is A
the refracted ray deviates away from the normal

When light is incident obliquely, from a medium of higher optical density to that of lower optical density, the refracted ray deviates away from the normal.