Physics
If the focal length of objective lens is increased, then magnifying power of
20
Aug
If the focal length of objective lens is increased, then magnifying power of If the focal length of objective lens is increased then magnifying power of August 20, 2020 Category: Chapter 32 - Ray Optics , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
In an astronomical telescope in normal adjustment, a straight black line of length L is drawn on inside part of the objective lens. The eyepiece forms a real image of this line. The length of this image is l. The magnification of the telescope is?
20
Aug
In an astronomical telescope in normal adjustment, a straight black line of length L is drawn on inside part of the objective lens. The eyepiece forms a real image of this line. The length of this image is l. The magnification of the telescope is? a straight black line of length L is drawn on [...]
A person can see clearly object only when they lie between 50 cm and 400 cm from his eyes. In order to increase the maximum distance of distinct vision to infinity, the type and power of the correcting lens, the person has to use, will be
20
Aug
A person can see clearly object only when they lie between 50 cm and 400 cm from his eyes. In order to increase the maximum distance of distinct vision to infinity, the type and power of the correcting lens, the person has to use, will be A person can see clearly object only when they [...]
An astronomical refracting telescope will have large angular magnification and high resolution, when it has an objective lens of
20
Aug
An astronomical refracting telescope will have large angular magnification and high resolution, when it has an objective lens of An astronomical refracting telescope will have large angular magnification and high resolution when it has an objective lens of August 20, 2020 Category: Chapter 32 - Ray Optics , NEET Last 32 Years Solved 1988 - [...]
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 ,