Light Reflectio...

A point object is placed at a distance of $$10\ cm$$ and is real image is formed at a distance of $$20\ cm$$ from a concave mirror. If the object is moved by $$0.1\ cm$$ toward the mirror, the image will shift by about 

Velocity of light in a medium is $$1.5\times 10^8 m/s$$. Its refractive index will be

If the speed of light in vacuum is $$C\ \ m/sec$$, then the velocity of light in a medium of refractive index $$1.5$$ is

On a glass plate a light wave is incident at an angle of $$60^o$$. If the reflected and the refracted waves are mutually perpendicular, the refractive index of material is

Refractive index of glass is $$\dfrac {3}{2}$$ and refractive index of water is $$\dfrac {4}{3}$$. If the speed of light in glass is $$2.00\times 10^8\ m/s$$ , the speed in water will be

A convex lens

When a ray of light passes through the second optical medium with a change in the angle, the phenomenon is known as:

Which of the following event is not related to refraction of light ?

Which of the following materials has maximum optical density?

The magnification of plane mirror is always ...............