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# when a ray of light passes from denser medium to rarer medium in a straight line, the angle of incidence must be

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## If a ray of light passes from a denser medium to a rarer medium in a straight line, the angle of incident must be

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Question

## If a ray of light passes from a denser medium to a rarer medium in a straight line, the angle of incident must be _____

A0

o

B30

o

C60

o

D90

o Medium Open in App

Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is A)

## option A is correct

59 14

स्रोत : www.toppr.com

## If a ray of light passes from a denser medium to a rarer medium in a straight line,the angle of incidence must be "….................." .

If a ray of light passes from a denser medium to a rarer medium in a straight line,the angle of incidence must be "….................." .

If a ray of light passes from a denser medium to a rarer medium in a straight line,the angle of incidence must be

….................. .

NAVNEET PUBLICATION - MAHARASHTRA BOARD-MULTIPLE CHOICE QUESTIONS-REFRACTION OF LIGHT

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Updated On: 27-06-2022

लिखित उत्तर A 0 ∘ B 30 ∘ C 60 ∘ D 90 ∘ Answer

उत्तर

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

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When a light ray passes from a denser medium into a rarer medium, the angle of incidence for which the angle of refraction is maximum is called _____________

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When a ray of light passes from a rarer medium to a denser medium, the angle of refraction is ……….. .

116056952 Text Solution

When a ray of light passes from a denser medium to a rarer medium, the ray …………. .

116056955 Text Solution

The angle of refraction is always greater than the angle of incidence for a ray of light travelling from optically denser medium to a rarer medium.

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If a ray of light passes from a denser medium to a rarer medium in a straight line,the angle of incidence must be

….................. . 119573484 02:57

A ray of light incident from a denser medium passes through a rarer medium in a straight line. What should be angle of incidence ?

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When a light ray from a rarer medium is refracted into a denser medium, its

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A light ray is incident on a rarer medium from a denser medium. The velocity of light in rarer medium is double its value in denser medium. For total internal reflection what should be the value of the critical angle?

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If a ray of light is incident from rarer medium at an angle 45° on the surface which separates two medium having refractive indices

1 and √ 2

for rarer and denser medium, then angle of deviation of refractive ray with incident ray is

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The angle of refraction is always greater than the angle of incidence for a ray of light travelling from optically denser medium to a rarer medium.

642960236 03:32

A light ray is incident fromt a denser medium on the boundary separating it from a rarer medium at an angle of incidence equal to the critical angle. What is the angle of refraction for the ray ?

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If a ray of light is incident from rarer medium at an angle 45° on the surface which separates two medium having refractive indices 1 and sqrt(2) for rarer and denser medium, then angle of deviation of refractive ray with incident ray is

644382226 03:03

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Choose the correct alternative and write it along with its allotted alphabet: If a ray of light passes from a denser medium to a rarer medium in a straight line, the angle of incidence must be

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When a ray of light passes from a rarer medium to a denser medium, then the angle of refraction from the angle of incidence is

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स्रोत : www.doubtnut.com

## A ray of light from a denser medium strikes a rarer medium at an angle of incidence i as shown in the figure. The reflected and refracted rays make an angle of 90∘ with each other. The angles of reflection and refraction are r and r '. The critical angle isA. sin 1tan rB. sin 1tan iC. sin 1tan r'D. tan 1tan i

A ray of light from a denser medium strikes a rarer medium at an angle of incidence i as shown in the figure. The reflected and refracted rays make an angle of 90∘ with each other. The angles of reflection and refraction are r and r '. The critical angle isA. sin 1tan rB. sin 1tan iC. sin 1tan r'D. tan 1tan i

Byju's Answer Standard X Physics Critical Angle A ray of ligh... Question

A ray of light from a denser medium strikes a rarer medium at an angle of incidence i as shown in the figure. The reflected and refracted rays make an angle of

90 ∘

with each other. The angles of reflection and refraction are r and r'. The critical angle is

A s i n − 1 ( t a n r ) B s i n − 1 ( t a n i ) C s i n − 1 ( t a n r ′ ) D t a n − 1 ( t a n i ) Open in App Solution

The correct option is A

s i n − 1 ( t a n r )

From figure, i = r and r' =

90 ∘ − r Now, n = s i n r ′ s i n r = s i n ( 90 ∘ − r ) s i n r ⇒ n = c o s r s i n r = 1 t a n r We know that, n = 1 s i n C

where C = critical angle

∴ 1 s i n C = 1 t a n r ⇒ C = s i n − 1 ( t a n r ) Suggest Corrections 18

SIMILAR QUESTIONS

Q. A ray of light from a denser medium strikes a rare medium at angle of incidence i as shown in the figure. The reflected and refracted rays make an angle of 90°with each other. The angles of reflection and refraction are r and r'. The critical angle between them is

(a) sin^-1(tanr) (b) sin^-1(tani) (c) sin^-1(tanr') (d) tan^-1(tani)

(The figure has an incident ray , a reflected ray , a normal and a refracted ray all lying at the point of incidence and an angle of 90 degree btw reflected and refracted ray)

Q. A ray of light denser medium strikes a rarer medium at an angle of incidence

i

shown in the figure. The reflected and refracted rays make angle

90 ∘

with each other. The angles of reflection and refraction are

r and r ′

. The critical angle is :

Q. A ray of light from a denser medium strikes a rarer medium at an angle of incidence

( i )

as shown in the figure. The reflected and refracted rays make an angle of

90 ∘

with each other. The angle of reflection and refraction are

( r ) and ( r ′ )

respectively. The critical angle is-

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Mohammed 11 day ago

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