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The refractive index of the material of a prism is√2 and its refracting angle is 30º. One of therefracting surfaces of the prism is made a mirrorinwards. A beam of monochromatic light entersthe prism from the mirrored surface, then its angleof incidence of the prism is [2004]
  • a)
    30º
  • b)
    45º
  • c)
    60º
  • d)
    0º
Correct answer is option 'B'. Can you explain this answer?
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The refractive index of the material of a prism is√2 and its ref...
∠r = 30° (using law of triangle)
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The refractive index of the material of a prism is√2 and its ref...
Defined as the ratio of the speed of light in a vacuum to the speed of light in the material of the prism. It is denoted by the symbol "n" and is a dimensionless quantity. The refractive index of a material is dependent on the wavelength of light passing through it, and is typically measured at a specific wavelength, such as the yellow line of sodium at 589 nm. The refractive index of a material can be used to predict the behavior of light as it passes through the material, such as the deflection of light by a prism.
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Read the following text and answer the following questions on the basis of the same:Negative Refractive Index: One of the most fundamental phenomena in optics is refraction. When a beam of light crosses the interface between two different materials, its path is altered depending on the difference in the refractive indices of the materials. The greater the difference, the greater the refraction of the beam. For all known naturally occurring materials the refractive index assumes only positive values. But does this have to be the case?In 1967, Soviet physicist Victor Veselago hypothesized that a material with a negative refractive index could exist without violating any of the laws of physics.Veselago predicted that this remarkable material would exhibit a wide variety of new optical phenomena. However, until recently no one had found such a material and Veselago’s ideas had remained untested. Recently, meta-material samples are being tested for negative refractive index. But the experiments show significant losses and this could be an intrinsic property of negativeindex materials.Snell’s law is satisfied for the materials having a negative refractive index, but the direction of the refracted light ray is ‘mirror-imaged’ about the normal to the surface.There will be an interesting difference in image formation if a vessel is filled with “negative water” having refractive index – 1.33 instead of regular water having refractive index 1.33.Say, there is a fish in a vessel filled with negative water. The position of the fish is such that the observer cannot see it due to normal refraction since the refracted ray does not reach to his eye.But due to negative refraction, he will be able to see it since the refracted ray now reaches his eye.Q. A ray incident on normal glass and “negative glass” at an angle 60°. If the magnitude of angle of refraction in normal glass is 45° then, what will be the magnitude of angle of refraction in the “negative glass”?

Read the following text and answer the following questions on the basis of the same:Negative Refractive Index: One of the most fundamental phenomena in optics is refraction. When a beam of light crosses the interface between two different materials, its path is altered depending on the difference in the refractive indices of the materials. The greater the difference, the greater the refraction of the beam. For all known naturally occurring materials the refractive index assumes only positive values. But does this have to be the case?In 1967, Soviet physicist Victor Veselago hypothesized that a material with a negative refractive index could exist without violating any of the laws of physics.Veselago predicted that this remarkable material would exhibit a wide variety of new optical phenomena. However, until recently no one had found such a material and Veselago’s ideas had remained untested. Recently, meta-material samples are being tested for negative refractive index. But the experiments show significant losses and this could be an intrinsic property of negativeindex materials.Snell’s law is satisfied for the materials having a negative refractive index, but the direction of the refracted light ray is ‘mirror-imaged’ about the normal to the surface.There will be an interesting difference in image formation if a vessel is filled with “negative water” having refractive index – 1.33 instead of regular water having refractive index 1.33.Say, there is a fish in a vessel filled with negative water. The position of the fish is such that the observer cannot see it due to normal refraction since the refracted ray does not reach to his eye.But due to negative refraction, he will be able to see it since the refracted ray now reaches his eye.Q. When the angle of incidence will be equal to angle of refraction for material having negative refraction index?

Read the following text and answer the following questions on the basis of the same:Negative Refractive Index: One of the most fundamental phenomena in optics is refraction. When a beam of light crosses the interface between two different materials, its path is altered depending on the difference in the refractive indices of the materials. The greater the difference, the greater the refraction of the beam. For all known naturally occurring materials the refractive index assumes only positive values. But does this have to be the case?In 1967, Soviet physicist Victor Veselago hypothesized that a material with a negative refractive index could exist without violating any of the laws of physics.Veselago predicted that this remarkable material would exhibit a wide variety of new optical phenomena. However, until recently no one had found such a material and Veselago’s ideas had remained untested. Recently, meta-material samples are being tested for negative refractive index. But the experiments show significant losses and this could be an intrinsic property of negativeindex materials.Snell’s law is satisfied for the materials having a negative refractive index, but the direction of the refracted light ray is ‘mirror-imaged’ about the normal to the surface.There will be an interesting difference in image formation if a vessel is filled with “negative water” having refractive index – 1.33 instead of regular water having refractive index 1.33.Say, there is a fish in a vessel filled with negative water. The position of the fish is such that the observer cannot see it due to normal refraction since the refracted ray does not reach to his eye.But due to negative refraction, he will be able to see it since the refracted ray now reaches his eye.Q. Is Snell’s law applicable for negative refraction ?

The refractive index of the material of a prism is√2 and its refracting angle is 30º. One of therefracting surfaces of the prism is made a mirrorinwards. A beam of monochromatic light entersthe prism from the mirrored surface, then its angleof incidence of the prism is [2004]a)30ºb)45ºc)60ºd)0ºCorrect answer is option 'B'. Can you explain this answer?
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The refractive index of the material of a prism is√2 and its refracting angle is 30º. One of therefracting surfaces of the prism is made a mirrorinwards. A beam of monochromatic light entersthe prism from the mirrored surface, then its angleof incidence of the prism is [2004]a)30ºb)45ºc)60ºd)0ºCorrect answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The refractive index of the material of a prism is√2 and its refracting angle is 30º. One of therefracting surfaces of the prism is made a mirrorinwards. A beam of monochromatic light entersthe prism from the mirrored surface, then its angleof incidence of the prism is [2004]a)30ºb)45ºc)60ºd)0ºCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The refractive index of the material of a prism is√2 and its refracting angle is 30º. One of therefracting surfaces of the prism is made a mirrorinwards. A beam of monochromatic light entersthe prism from the mirrored surface, then its angleof incidence of the prism is [2004]a)30ºb)45ºc)60ºd)0ºCorrect answer is option 'B'. Can you explain this answer?.
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