Advertisements
Advertisements
प्रश्न
Air is optically .......... than glass.
उत्तर
Air is optically rarer than glass.
APPEARS IN
संबंधित प्रश्न
Write all the capital letters of the alphabet which look the same in a plane mirror.
If a ray of light goes from a rarer medium to a denser medium, will it bend towards the normal or away from it?
With the help of a diagram, show how when light falls obliquely on the side of a rectangular glass slab, the emergent ray is parallel to the incident ray.
The speed of light is more in glass than in water.
Draw a diagram showing the refraction of a light ray from water to glass. Label on it the incident ray, the angle of incidence (/), and the angle of refraction (r)
A light ray suffers reflection and refraction at the boundary in passing from air to water. Draw a neat labelled ray diagram to show it.
The phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.
Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is _______ nm.
The speed of light varies in different media.
Write scientific reason.
The sun appears on the western horizon for some time after sunset.
