Chapter 17 – Refraction of Light by Plane Surfaces
Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 17 - Refraction of Light by Plane Surfaces
A beam of monochromatic light is incident on one face of the equilateral prism the angle of incidence being 55^∘. If the angle of emergence is 46^∘, then the angle of minimum deviation is :
17
Nov
A beam of monochromatic light is incident on one face of the equilateral prism the angle of incidence being 55^∘. If the angle of emergence is 46^∘, then the angle of minimum deviation is : A beam of monochromatic light is incident on one face of the equilateral prism the angle of incidence being 55^∘. [...]
The angle of prism is 60 degrees. What is the angle of incidence for minimum deviation ? The refractive index of the material of the prism is root 2
17
Nov
The angle of prism is 60 degrees. What is the angle of incidence for minimum deviation ? The refractive index of the material of the prism is root 2 The angle of prism is 60 degrees. What is the angle of incidence for minimum deviation ? The refractive index of the material of the prism [...]
A ray of light passes through an equilateral prism such that the angle of emergence is equal to the angle of incidence and each is equal to 4/3 th of the angle of the prism. The angle of deviation is
17
Nov
A ray of light passes through an equilateral prism such that the angle of emergence is equal to the angle of incidence and each is equal to 4/3 th of the angle of the prism. The angle of deviation is A ray of light passes through an equilateral prism such that the angle of emergence [...]
If the refracting angle of a prism is 60^∘ and the minimum deviation is 30^∘, then the angle of incidence is
17
Nov
If the refracting angle of a prism is 60^∘ and the minimum deviation is 30^∘, then the angle of incidence is If the refracting angle of a prism is 60^∘ and the minimum deviation is 30^∘ then the angle of incidence is November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 17 - [...]
The refracting angle of a prism is A and the refractive index of the material of the prism is cot 2 /A. The angle of minimum deviation is
17
Nov
The refracting angle of a prism is A and the refractive index of the material of the prism is cot 2 /A. The angle of minimum deviation is The refracting angle of a prism is A and the refractive index of the material of the prism is cot 2 /A. The angle of minimum deviation [...]
Deviation δ produced by a prism of angle A, which is assumed to be small, made of a material of refractive index μ is given by
17
Nov
Deviation δ produced by a prism of angle A, which is assumed to be small, made of a material of refractive index μ is given by Deviation δ produced by a prism of angle A made of a material of refractive index μ is given by which is assumed to be small November 17, 2020 [...]
Which of the following options are correct regarding prism? 1. A ray of light will not come out of a prism (whatever be the angle of incidence) if A>2C i.e. if μ>cosec(A/2) 2. Deviation will be maximum when angle of incidence i is maximum i.e. i=90^∘ 3. In case of minimum deviation (i) angle of incidence i=angle of emergence i′ (ii) r=r′=A/2 (iii) μ=sin(A+δm/2)/sin(A/2) (iv) If the prism is equilateral (or isosceles), the ray inside the prism will be parallel to its base 4. All options are correct
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Nov
Which of the following options are correct regarding prism? 1. A ray of light will not come out of a prism (whatever be the angle of incidence) if A>2C i.e. if μ>cosec(A/2) 2. Deviation will be maximum when angle of incidence i is maximum i.e. i=90^∘ 3. In case of minimum deviation (i) angle of [...]
Pick out the correct statements about optical fibres from the following: S1: Optical fibres are used for the transmission of optical signals only S2: Optical fibres are used for transmission of optical electrical signals S3: The intensity of light signals sent through optical fibres suffer very small loss S4: Optical fibres effectively employ the principle of multiple total internal reflections S5: Optical fibres are glass fibres coated with a thin layer of a material with lower refractive index
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Nov
Pick out the correct statements about optical fibres from the following: S1: Optical fibres are used for the transmission of optical signals only S2: Optical fibres are used for transmission of optical electrical signals S3: The intensity of light signals sent through optical fibres suffer very small loss S4: Optical fibres effectively employ the principle [...]
Consider telecommunication through optical fibres. Which of the following statements is not true?
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Nov
Consider telecommunication through optical fibres. Which of the following statements is not true? Consider telecommunication through optical fibres. Which of the following statements is not true? November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 17 - Refraction of Light by Plane Surfaces , Part 2 ,
A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. The maximum possible deviation of the ray will be
17
Nov
A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. The maximum possible deviation of the ray will be A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. The maximum possible deviation [...]