Refraction is the phenomenon of bending of light as it passes from one optical medium to another with different optical density.
A lemon kept in water in a glass tumbler appears to be larger than its actual size. It is because of
Asked in UPSC NDA 2 2020 · Topic: Optics (Reflection and Refraction at plane and spherical surfaces)
More Physics questions
- Light of uniform intensity impinges perpendicularly on a totally reflecting surface. If the area of the surface is halved, the radiation force on it will become
- The Sun appears reddish during sunrise and sunset. The phenomenon in optics which is responsible for this appear-ance of the Sun is
- The refractive index of fused quartz is 1.46 and that of sapphire is 1.77. If vq is the speed of light in quartz and vs is the speed of light in sapphire, then which one of the following relations is correct ?
- In case of a concave mirror, if an object is kept between principal focus F and pole P of the mirror, then which one of the following statements about the image is NOT correct ?
- Twinkling of stars is primarily due to the atmospheric
- Spherical mirror formula relating an object distance 'u', image distance 'v' and focal length of mirror 'f' may be applied to a plane mirror when
- The image of an object formed by a plane mirror is
- The refractive index of crown glass is close to 3/2. If the speed of light in air is c, then the speed of light in the crown glass will be close to