Sunlight - white and coloured - class-VIII
Description: sunlight - white and coloured | |
Number of Questions: 46 | |
Created by: Ankita Patil | |
Tags: spectra spectrum our colourful world option c: imaging wonders of visible light light human eye and colourful world physics light energy |
White light is a mixture of
Splitting of light into its constituent colours is known as :
Clouds are white because of light scattering off of water droplets.
The splitting of white light into several colours on passing through a glass prism is due to -
What does the dispersion of light in a medium imply
i) Lights of different wavelength travel with different speeds in the medium.
ii) Light of any frequency will travel with the same speed in the medium
iii) The refractive index of the medium is different for different wavelength of light
The colour are characterised by which of following character of light.
The deflection of light by minute particles and molecules in all distraction is known as ____of light .
When the white light is passed through a equilateral prism it splits into seven colours. The phenomena of splitting of white light is called :
The phenomenon due to which white light splits into seven colours on passing through a prism is called _________
A rainbow is formed when the air is completely dry
A ray of light after passing through a medium were spread up into different colours. The phenomenon is called :
Dispersion of white light into its constituent colours occurs during :
The splitting of white light into several colours on passing through a glass prism is due to
The sky appears blue due to:
The splitting of white light into its colored components is called _____.
When white light passes through a dispersive medium, it breaks up into various colours. Which of the following is true?
Which of the following are Primary pigments ?
Which of the following are Primary colors ?
Why do we study the Dispersion phenomenon using a glass prism and not a glass slab ?
Dispersion of light is caused due to :
A ray of light containing both red and blue colours is incident on the refracting surface of a prism. Then,
The phenomenon of dispersion arises because of
Soap bubble appears coloured due to the phenomenon of:-
Oil floating on water looks coloured due to interference of light. What should be the order of magnitude of the thickness of oil layer in order that this effect may be observed?
Dispersion of ......... colour is minimum in visible range of light.
Calculate the angle of dispersion between red and violet colours produced by a flint glass prism of refracting angle of $60^0$. Given : $\mu _v = 1.663$ and $\mu _r = 1.622$.
Fill in the blanks:
State whether the following statement is True or False.
When white light splits in seven colours, the phenomenon is called spectrum.
Dispersion of white light into its constituent colours occurs during
Dispersion of white light into its constituent colours occurs during
Line spectrum is obtained from the :
A piece of cloth looks red in sun light. If it is held in the blue portion of a solar spectrum, it will appear
Which of the following colours of light undergoes the least deviation while passing through a glass prism ?
The light which refracts most while passing through a prism is
Which of the following colour of light undergoes the maximum deviation while passing a glass prism ?
When light passes through a medium that consists of scatters such as water vapour, dust particles, which colour of light experiences highest scattering?
When light enters a dispersive medium, light wave of different wavelength travels with different velocities.
Assertion: Different colours travel with different speed in vacuum.
Reason : Wavelength of light depends on refractive index of medium.
What is known as dispersion of light?
Due to which property of colours they appear differently though the sunlight is passed through only one medium?
In the spectrum of white light which color is deviated minimum ?
In spectrum obtained with prism which color is deviated maximum ?
Which of the following scientists did the pioneering work to understand the splitting of white light in different components ?
The spreading of white light into its component colours is known as.