(a) 3/ 2
(b) 2/ 3
(c) 1/ 2
(d) 2
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How is the refractive index of a medium related to the speed of light?
The refractive index of the medium nm is given by nm= (Speed of light in air) / (Speed of light in medium)=c/v Let v1 be the speed of light in medium 1 and v2 be...
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A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?
The light ray bends towards the normal. When a ray of light travels from an optically rarer medium to an optically denser medium, it gets bent towards the normal. Since...
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A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why
Light ray travelling in air and entering obliquely into water is bent towards the normal; because the speed of the ray decreases in water.
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Light enters from air into glass having refractive index 1.50. What is the speed of light in glass? The speed of light in vacuum is 3 x 108 ms-1.
Given,n=1.5 and the speed of light in vacuum, c = 3x 108 ms-1. We know that the refractive index is given by the expression n =c/v where c is the...
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You are given kerosene, turpentine oil and water. In which of these does the light ray travel fastest? Given refractive index of kerosene = 1.44
Speed of light in a medium is inversely proportional to refractive index of the medium, i.e, v∝1/n. As refractive index of water is minimum, so light travels fastest in water.
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Define the term refractive index of a medium in terms of speed of light.
Refractive index of a medium is defined as the ratio of speed of light in vacuum to the speed of light in the medium. i.e., Refractive index (of a medium)...
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Why does a ray of light bend when it travels from one medium into another?
When a ray of light travels from one medium to another, its speed changes and this change in speed of light causes the bending of light (refraction of light).
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How is the refractive index of a medium related to the speed of light
The refractive index of the medium nm is given by nm= (Speed of light in air) / (Speed of light in medium)=c/v Let v1 be the speed of light in medium 1...
1 Answers 1 views
Total internal reflection can take place only if (a) light goes from optically rarer medium (smaller refractive index) to optically denser medium
(b) light goes from optically denser medium to rarer medium EXPLANATION: When the light goes from a denser medium to lighter medium, it goes away from the normal. When the angle of...
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The refractive index of a glass is 1.520 for red light and 1.525 for blue light
(a) For a thin prism, D = (μ – 1) A Since λb < λr ⇒ μr < μb ⇒ D1 < D2
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