Chapter 32 – Ray Optics
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A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm respectively. To view an object 200 cm away from the objective, the lenses must be separated by a distance
20
Aug
A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm respectively. To view an object 200 cm away from the objective, the lenses must be separated by a distance A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm respectively. To view an object 200 [...]
The ratio of resolving powers of an optical microscope for two wavelengths λ1 = 4000A˚ and λ2 = 6000A˚ is
20
Aug
The ratio of resolving powers of an optical microscope for two wavelengths λ1 = 4000A˚ and λ2 = 6000A˚ is The ratio of resolving powers of an optical microscope for two wavelengths λ1 = 4000A˚ and λ2 = 6000A˚ is August 20, 2020 Category: Chapter 32 - Ray Optics , NEET Last 32 Years Solved [...]
A ray of light is incident at an angle of incidence i, on one face of a prism of angle A (assumed to be small) and emerges normally from the opposite face. If the refractive index of the prism is μ, the angle of incidence i, is nearly equal to
20
Aug
A ray of light is incident at an angle of incidence i, on one face of a prism of angle A (assumed to be small) and emerges normally from the opposite face. If the refractive index of the prism is μ, the angle of incidence i, is nearly equal to A ray of light is [...]
The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface.The refractive index μ, of the prism is
20
Aug
The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface.The refractive index μ, of the prism is are The angle of incidence for a ray [...]
A beam of light consisting of red green and blue colours is incident on a right angled prism. The refractive index of the material of the prism for the above red, green and blue wavelengths are 1.39, 1.44 and 1.47, respectively. The prism will
20
Aug
A beam of light consisting of red green and blue colours is incident on a right angled prism. The refractive index of the material of the prism for the above red, green and blue wavelengths are 1.39, 1.44 and 1.47, respectively. The prism will 1.44 and 1.47 A beam of light consisting of red green [...]
The refractive index of the material of a prism is root 2 and the angle of the prism is 30 degree. One of the two refracting surface of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is?
20
Aug
The refractive index of the material of a prism is root 2 and the angle of the prism is 30 degree. One of the two refracting surface of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after [...]
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by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is ,
The refractive index of the material of a prism is root 2 and the angle of the prism is 30 degree. One of the two refracting surface of the prism is made a mirror inwards ,
The refracting angle of a prism is A, the refractive index of the material of the prism is cot (A/2). The angle of minimum deviation is
20
Aug
The refracting angle of a prism is A, the refractive index of the material of the prism is cot (A/2). The angle of minimum deviation is The refracting angle of a prism is A the refractive index of the material of the prism is cot (A/2). The angle of minimum deviation is August 20, 2020 [...]
The angle of incidence for a ray of light at a refracting surface of a prism is 45 degree. The angle of prism is 60 degree. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are
20
Aug
The angle of incidence for a ray of light at a refracting surface of a prism is 45 degree. The angle of prism is 60 degree. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are are The angle of [...]
A thin prism having refracting angle 10 degree is made of glass of refractive index 1.42. This prism is combined with another thin prism of glass of refractive index 1.7. This combination produces dispersion without deviation. The refracting angle of second prism should be
20
Aug
A thin prism having refracting angle 10 degree is made of glass of refractive index 1.42. This prism is combined with another thin prism of glass of refractive index 1.7. This combination produces dispersion without deviation. The refracting angle of second prism should be A biconvex lens has a radius of curvature of magnitude 20 [...]
A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of the combination is
20
Aug
A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of the combination is A convex lens and a concave lens are put in contact to form a combination of lenses. The power in diopters of [...]