Chapter 28 – Electromagnetic Waves

An object 5 cm tall is placed 1m from a concave spherical mirror which has a radius of curvature of 20c m. The size of the image is An object 5 cm tall is placed 1m from a concave spherical mirror which has a radius of curvature of 20c m. The size of the image [...]

A converging lens forms a real image I of an object on its principal axis. A rectangular slab of refractive index μ and thickness x is introduced between I and the lens, I will move A converging lens forms a real image I of an object on its principal axis. A rectangular slab of refractive [...]

The focal length of objective and eye piece lens of a microscope are 1.6 cm & 2.5 cm respectively. Distance between two lenses is 21.7 cm .If the final image is formed at infinity what is the linear magnification? A point source is kept at a distance of 1000 m has an illumination I. To [...]

A point source is kept at a distance of 1000 m has an illumination I. To change the illumination to 16I the new distance should become. A point source is kept at a distance of 1000 m has an illumination I. To change the illumination to 16I the new distance should become. October 27, 2020 [...]

A wire mesh consisting of very small squares is viewed at a distance of 8 cm through a magnifying converging lens of focal length 10 cm, kept close to the eye. The magnification produced by the lens is. A wire mesh consisting of very small squares is viewed at a distance of 8 cm through [...]

The apparent depth of water in cylindrical water tank of diameter 2R cm is reducing at the rate of x cm/minute when water is being drained out at a constant rate. The amount of water drained in c.c, per minute is : ( n1 = refractive index of air, n2 ​ = refractive index of [...]

A telescope has an objective lens of focal length 200 cm and an eyepiece with focal length 2 cm. It is used to see a 50 m tall building at a distance of 2 km. What is the height of the image of building formed by the objective lens? respectively What should be the maximum [...]

In an experiment to find focal length of a concave mirror, a graph is drawn between the magnitudes of (u) and (v). The graph looks like. a graph is drawn between the magnitudes of (u) and (v). The graph looks like. In an experiment to find focal length of a concave mirror October 27, 2020 [...]

A good photographic print is obtained by an exposure of 2 second at a distance of 1 m from the lamp. How much time will be required to get equally good result at a distance 2 m from the same lamp? A good photographic print is obtained by an exposure of 2 second at a [...]

Relation between critical angle of water and the glass is : Relation between critical angle of water and the glass is : October 27, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 16 - Waves , Chapter 28 - Electromagnetic Waves , Physics ,