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WorksheetsRefraction and dispersion
Total questions: 10
Worksheet time: 5mins
Which type of medium is needed for refraction of light?
Transparent
Translucent
Opaque
None of these
Name the phenomenon happens when light rays falls on a shining or polished surface.
Refraction of light
Reflection of light
Dispersion of light
None of these
what we call the phenomenon when a light ray changes its direction when passing from one transparent medium to another transparent medium?
Reflection of light
Refraction of light
Dispersion of light
None of these
Which condition is needed for a light ray to bend in a transparent medium?
It should fall perpendicularly
It should fall on a normal
It should fall obliquely
None of these
How the coin appears to be when it is there in the beaker containing water?
It come upwards
It appears to be raised
No change in its position
Coin becomes larger
What is the speed of light in vacuum?
2 lakh kilometres per second
5 lakh kilometre per second
4 lakh kilometre per second
3 lakh kilometre per second
How the speed of light changes when it travels from optically rarer to optically denser medium?
No change in its speed
Slow down
Get faster
Double of the previous speed
When the Ray of light get fasten up?
Moving from optically rarer to denser
Moving from optically denser to rarer
Travelling on the path of normal
Never fasten up
What is the unit of refractive index?
Metre per second
Metre per second square
Kilometre per second
No units
In absolute refractive index we compare the speed of light of a medium with the speed of light in__________.
Water
Glass
Vacuum
Diamond
