Advertisements
Advertisements
प्रश्न
State two advantages of using a right-angle prism as a reflector, rather than a plane mirror.
Advertisements
उत्तर
(i) There is no absorption of light in a prism and hence the image is brighter.
(ii) Image is sharper in case of the prism.
संबंधित प्रश्न
Plot a graph between
Angle of incidence versus angle of reflection,
How does a ray of light bend when it travels from rarer to denser medium
How are critical angles related to the refractive index of the medium?
How is the critical angle of a material related to its refractive index?
A ray of light is incident on a glass surface at an angle of 50° with the corresponding angle of refraction 30°. Find the value of the R.I. of glass.
For the same angle of incidence, the angle of refraction in four media A, B, C and D are 25°, 30°, 35° and 40° respectively. The speed of light is least in medium ______.
Optical fibre communication uses the principle of ______.
A light is entering from one medium refractive index `("RI" =5/3)` to another medium at an angle 30°. The angle of refraction for other medium is sin-1 `(5/6)`. then the increase in angle of incidence is ______ such that the ray of light reflected back into the same medium.
The critical angle for crown glass, which has a refractive index of 1.52, is:
