NEET Last 32 Years Solved 1988 – 2019 Physics and Chemistry Video Solutions
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A convex lens of focal length 80 cm and a concave lens of focal length 50 cm are combined together. What will be their resulting power ?
13
Aug
A convex lens of focal length 80 cm and a concave lens of focal length 50 cm are combined together. What will be their resulting power ? A convex lens of focal length 80 cm and a concave lens of focal length 50 cm are combined together. What will be their resulting power ? August [...]
Let fv and fr are the focal lengths of a convex lens for violet and red lights respectively. If Fv and Fr are the focal lengths of a concave lens for violet and red light respectively, then
13
Aug
Let fv and fr are the focal lengths of a convex lens for violet and red lights respectively. If Fv and Fr are the focal lengths of a concave lens for violet and red light respectively, then Let fv and fr are the focal lengths of a convex lens for violet and red lights respectively. [...]
The focal lengths of a converging lens measured for violet, green and red colours of fv′fG′fR respectively. We will find
13
Aug
The focal lengths of a converging lens measured for violet, green and red colours of fv′fG′fR respectively. We will find green and red colours of fv′fG′fR respectively. We will find The focal lengths of a converging lens measured for violet August 13, 2020 Category: Chapter 32 - Ray Optics , NEET Last 32 Years Solved [...]
A plano-convex lens is made of material of refractive index 1.6. The radius of curvature of the curved surface is 60cm. The focal length of the lens is
13
Aug
A plano-convex lens is made of material of refractive index 1.6. The radius of curvature of the curved surface is 60cm. The focal length of the lens is A plano-convex lens is made of material of refractive index 1.6. The radius of curvature of the curved surface is 60cm. The focal length of the lens [...]
A planocovex lens is made of a material of refractive in μ=1.5 The radius of curvature of curved surface of the lens is 20.cm. If its plane surface is silvered, the focal length of the silvered lens will be
13
Aug
A planocovex lens is made of a material of refractive in μ=1.5 The radius of curvature of curved surface of the lens is 20.cm. If its plane surface is silvered, the focal length of the silvered lens will be A planocovex lens is made of a material of refractive in μ=1.5 The radius of curvature [...]
An equiconvex lens is cut into two halves along (i)XOX′ and (ii)YOY′ as shown in the figure. Let f,f′f′′ be the focal lengths of the complete lens, of each half in case (i) and of each half in case (ii) respectively
13
Aug
An equiconvex lens is cut into two halves along (i)XOX′ and (ii)YOY′ as shown in the figure. Let f,f′f′′ be the focal lengths of the complete lens, of each half in case (i) and of each half in case (ii) respectively An equiconvex lens is cut into two halves along (i)XOX′ and (ii)YOY′ as shown [...]
A body is located on a wall. Its image of equal size is to be obtained on a parallel wall with the help of a convex lens. The lens is placed at a distance d ahead of second wall, then the required focal length will be
13
Aug
A body is located on a wall. Its image of equal size is to be obtained on a parallel wall with the help of a convex lens. The lens is placed at a distance d ahead of second wall, then the required focal length will be A body is located on a wall. Its image [...]
A luminous object is placed at a distance of 30 cm from the convex lens, of focal length 20 cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an image of the object coincident with it
13
Aug
A luminous object is placed at a distance of 30 cm from the convex lens, of focal length 20 cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an image of the object coincident with [...]
A beam of monochromatic light is refracted from vacuum into a medium of refractive index 1.5, the wavelength of refracted light will be.
12
Aug
A beam of monochromatic light is refracted from vacuum into a medium of refractive index 1.5, the wavelength of refracted light will be. A beam of monochromatic light is refracted from vacuum into a medium of refractive index 1.5 the wavelength of refracted light will be. August 12, 2020 Category: Chapter 32 - Ray Optics [...]
Time taken by sunlight to pass through a window of thickness 4mm whose refractive index is 32, is
12
Aug
Time taken by sunlight to pass through a window of thickness 4mm whose refractive index is 32, is is Time taken by sunlight to pass through a window of thickness 4mm whose refractive index is 32 August 12, 2020 Category: Chapter 32 - Ray Optics , NEET Last 32 Years Solved 1988 - 2019 Physics [...]