Cengage JEE Mains Physics by B.M Sharma
A parallel beam of light is incident on the system of two convex lenses of focal lengths f1 = 20 cm and f2 = 10 cm. What should be the distance between the two lenses so that rays after refraction from both the lenses pass undeviated.
15
Nov
A parallel beam of light is incident on the system of two convex lenses of focal lengths f1 = 20 cm and f2 = 10 cm. What should be the distance between the two lenses so that rays after refraction from both the lenses pass undeviated. Angle of minimum deviation is equal to the angle [...]
A plano-convex lens fits exactly into a plano-concave lens. Their plane surfaces are parallel to each other. If the lenses are made of different material of refractive indices μ1 and μ2 and R is the radius of curvature of the curved surface of the lenses, then focal length of the combination is :
15
Nov
A plano-convex lens fits exactly into a plano-concave lens. Their plane surfaces are parallel to each other. If the lenses are made of different material of refractive indices μ1 and μ2 and R is the radius of curvature of the curved surface of the lenses, then focal length of the combination is : Angle of [...]
One of the refracting surfaces of a prism of angle 30^∘ is silvered. A ray of light incident at angle of 60^∘ retraces its path. The refractive index of the material of prism is
15
Nov
One of the refracting surfaces of a prism of angle 30^∘ is silvered. A ray of light incident at angle of 60^∘ retraces its path. The refractive index of the material of prism is One of the refracting surfaces of a prism of angle 30^∘ is silvered. A ray of light incident at angle of [...]
Angle of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angle of incident at which minimum deviation will be obtained is
15
Nov
Angle of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angle of incident at which minimum deviation will be obtained is Angle of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angle of incident at which minimum deviation will [...]
The refractive index of a prism is 2. The prism can have a maximum refracting angle of
15
Nov
The refractive index of a prism is 2. The prism can have a maximum refracting angle of The refractive index of a prism is 2. The prism can have a maximum refracting angle of November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 26 - Geometrical Optics ,
The image of point P when viewed from top of the slabs will be :
15
Nov
The image of point P when viewed from top of the slabs will be : The image of point P when viewed from top of the slabs will be November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 26 - Geometrical Optics ,
Refraction takes place at a convex spherical boundary separating glass-air medium. For the image to be real, the object distance (μg=3/2) should be /is
15
Nov
Refraction takes place at a convex spherical boundary separating glass-air medium. For the image to be real, the object distance (μg=3/2) should be /is Refraction takes place at a convex spherical boundary separating glass-air medium. For the image to be real the object distance (μg=3/2) should be /is November 15, 2020 Category: Cengage JEE Mains [...]
Consider the situation shown in figure. Water (μ=4/3) is filled in a beaker up to a height of 10cm. A plane mirror is fixed at a height of 5 cm from the surface of water. Distance of image from the mirror after reflection from it of an object O at the bottom of the beaker is
15
Nov
Consider the situation shown in figure. Water (μ=4/3) is filled in a beaker up to a height of 10cm. A plane mirror is fixed at a height of 5 cm from the surface of water. Distance of image from the mirror after reflection from it of an object O at the bottom of the beaker [...]
A candle is placed 20 cm from the surface of a convex mirror and a plane mirror is also placed so that the virtual images in the two mirrors coincide. If the plane mirror is 12 cm away from the object, what is the focal length of the convex mirror?
15
Nov
A candle is placed 20 cm from the surface of a convex mirror and a plane mirror is also placed so that the virtual images in the two mirrors coincide. If the plane mirror is 12 cm away from the object, what is the focal length of the convex mirror? A candle is placed 20 [...]
An object is put at a distance of 5 cm from the first focus of a convex lens of focal length 10 cm. If a real image is formed, its distance from the lens will be :
15
Nov
An object is put at a distance of 5 cm from the first focus of a convex lens of focal length 10 cm. If a real image is formed, its distance from the lens will be : An object is put at a distance of 5 cm from the first focus of a convex lens [...]