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- 1. Multiple Choice
When white light enters a prism, it gets split into its constituent colours. This is due to
different refractive index for different wavelength of each colour
each colours has same velocity in the prism.
prism material have high density.
Scattering of light
- 2. Multiple Choice
The deflection of light by minute particles and molecules of the atmosphere in all direction is called ____________ of light.
scattering
interference
tyndell effect
Reflection
- 3. Multiple Choice
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
moves fastest in air
is absorbed the most by smoke or fog
is scattered the least by smoke or fog
is scattered the most by smoke or fog
- 4. Multiple Choice
When a white light falls on a triangular prism, the colour of light which will deviate the least is
violet
green
blue
red
- 5. Multiple Choice
Advanced sunrise and delayed sunset is due to
Scattering of light
Atmospheric refraction
dispersion of light
reflection of light
- 6. Multiple Choice
Why does the lower part of the child appear so much different in size from the upper part?The light rays that travel through water and then into air are refracted.The light rays that travel through water and then into air are enlarged.The light rays that travel through air and then into water are reflected.The light rays that travel through air and then into water are reduced. - 7. Multiple Choice
What is the time difference between actual sunset and apparent sunset ?
2 seconds
20 seconds
2 minutes
20 minutes
- 8. Multiple Choice
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
Rainbow
Twinkling of stars
Advanced sunrise and delayed sunset
Stars seem higher than they actually are
- 9. Multiple Choice
When white light passes through a prism,
red bends more, violet bends least
red bends least, violet bends most
dispersion doesn't occur
refraction doesn't occur
- 10. Multiple Choice
The splitting of white light into the seven colors when it passes through a transparent material is called
Refractrion
Dispersion
Reflection
Diffraction
- 11. Multiple ChoiceWhat is happening in this picture?The water is making the pencil biggerthe water is refracting (bending) the pencilthe water is refracting (bending) the light to make the pencil look bentlight is being absorbed
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