Dispersion of Light
Dispersion of Light: Overview
This topic covers concepts, such as, Dispersion, Dispersion of White Light, Spectrum of White Light, Recombination of Spectrum of White Light, Newton Disk, Formation of Rainbow, Prism & Colours of Rainbow etc.
Important Questions on Dispersion of Light
Draw the picture of rainbow and colour it in right order.
Choose the right word(s) from the given options:
(water-works department, fish, rain, ocean, seven)
There are _____ colours in rainbow.
If the phenomenon of dispersion doesn't exist, which of the following won't be observed?
Any light that gives a spectrum similar to that of sunlight is called _____.
Splitting of white light into seven colours on passing through the glass prism is called _____.
The colour of light which suffers the least deviation when passed through the prism is_______.
_____the speed of light in the glass prism, makes the light bend more.
Two surfaces of a prism are transparent and are known as the_____surfaces.
A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in figure. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky?
_____ is caused by dispersion of sunlight by tiny water droplets, suspended in the atmosphere after a rainfall.
List the three phenomena of light responsible for the formation of the rainbow in the sky.
The refractive index assumes entrance of light from a _______.
The absolute refractive indices of glass and water are 4/3 and 3/2 respectively. If the speed of light in glass is 2X108 m/s, calculate the speed of light in vacuum and water.
Write the name of the uncoloured circles of the rainbow given below.
Rainbow colour formation in jar experiment occurs due to density variation of liquids.
