Physics
Light with an energy flux of 18 W/cm^2 falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is
27
Oct
Light with an energy flux of 18 W/cm^2 falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is Light with an energy flux of 18 W/cm^2 falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is October 27, 2020 Category: AIIMS Last 24 Years Solved [...]
A convex lens of refractive index 2/3 has a power of 2.5 D in air. If it is placed in a liquid of refractive index 2, then the new power of the lens is:
27
Oct
A convex lens of refractive index 2/3 has a power of 2.5 D in air. If it is placed in a liquid of refractive index 2, then the new power of the lens is: A convex lens of refractive index 2/3 has a power of 2.5 D in air. If it is placed in a [...]
The magnifying power of a compound- microscope increases with
27
Oct
The magnifying power of a compound- microscope increases with The magnifying power of a compound- microscope increases with October 27, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 16 - Waves , Chapter 28 - Electromagnetic Waves , Physics ,
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
27
Oct
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
27
Oct
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?
27
Oct
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.
27
Oct
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.
27
Oct
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 water)
27
Oct
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?
27
Oct
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 [...]