MTG NEET Physics
What is the refractive index of material of a planoconvex lens, if the radius of curvature of the convex surface is 10 cm and focal length of the lens is 30 cm ?
09
Nov
What is the refractive index of material of a planoconvex lens, if the radius of curvature of the convex surface is 10 cm and focal length of the lens is 30 cm ? if the radius of curvature of the convex surface is 10 cm and focal length of the lens is 30 cm ? [...]
If the behavior of light rays is shown in the figure. The relation between refractive indices u, u1 and u2 is
08
Nov
If the behavior of light rays is shown in the figure. The relation between refractive indices u, u1 and u2 is If the behavior of light rays is shown in the figure. The relation between refractive indices u u1 and u2 is November 8, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics [...]
An equiconvex lens of glass of focal length 0.1 m is cut along a plane perpendicular to principal axis into two equal parts. The ratio of focal length of new lens formed is
08
Nov
An equiconvex lens of glass of focal length 0.1 m is cut along a plane perpendicular to principal axis into two equal parts. The ratio of focal length of new lens formed is An equiconvex lens of glass of focal length 0.1 m is cut along a plane perpendicular to principal axis into two equal [...]
A screen is placed 90 cm away from an object. The image of the object on the screen is formed by a convex lens at two different locations separated by 20 cm. Find the focal length of lens.
08
Nov
A screen is placed 90 cm away from an object. The image of the object on the screen is formed by a convex lens at two different locations separated by 20 cm. Find the focal length of lens. A screen is placed 90 cm away from an object. The image of the object on the [...]
A concave lens forms the image of an object such that the distance between the object and image is 10 cm and the magnification produced is 1/4. The focal length of the lens will be
08
Nov
A concave lens forms the image of an object such that the distance between the object and image is 10 cm and the magnification produced is 1/4. The focal length of the lens will be A concave lens forms the image of an object such that the distance between the object and image is 10 [...]
The distance between an object and a divergent lens is m times the focal length of the lens. The linear magnification produced by the lens is
08
Nov
The distance between an object and a divergent lens is m times the focal length of the lens. The linear magnification produced by the lens is The distance between an object and a divergent lens is m times the focal length of the lens. The linear magnification produced by the lens is November 8, 2020 [...]
The image of an electric bulb fixed in a wall is to be obtained on the wall opposite to it at a distance of 3m. The maximum possible focal length of the convex lens is
08
Nov
The image of an electric bulb fixed in a wall is to be obtained on the wall opposite to it at a distance of 3m. The maximum possible focal length of the convex lens is The image of an electric bulb fixed in a wall is to be obtained on the wall opposite to it [...]
A thin glass (refractive index 1.5) lens has optical power of −8 D in air. Its optical power in a liquid medium with refractive index 1.6 will be:
08
Nov
A thin glass (refractive index 1.5) lens has optical power of −8 D in air. Its optical power in a liquid medium with refractive index 1.6 will be: A thin glass (refractive index 1.5) lens has optical power of −8 D in air. Its optical power in a liquid medium with refractive index 1.6 will [...]
The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is :
08
Nov
The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is : The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive [...]
Two thin equiconvex lenses each of focal length 0.2 m are placed coaxially with their optic centres 0.5m apart. Then find the focal length of the combination is
08
Nov
Two thin equiconvex lenses each of focal length 0.2 m are placed coaxially with their optic centres 0.5m apart. Then find the focal length of the combination is Two thin equiconvex lenses each of focal length 0.2 m are placed coaxially with their optic centres 0.5m apart. Then find the focal length of the combination [...]