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Total questions: 17
Worksheet time: 9mins
transparent material such as
paper
glass
frosted glass
the wood is
transparent material
semi-transparent material
opaque material
semi-transparent material such as
tissue
human body
clear water
when the light rays fall on a rock, they reflect in
one direction
different direction
no answer is correct
passing of light through different medium cause
light reflection
light refraction
no thing
white light has .......... colors
five
seven
three
the speed of light through air is ............ than the speed of light through water
faster
slower
equal
the main light source of the earth's surface is
electric lamp
moonlight
sun
we can see objects due to
refraction
reflection
shadow
in regular reflection, light rays are reflected in
one direction
two directions
three directions
the light rays that can be seen are called
visible spectrum
infrared rays
all the previous answers
all the following are examples of semi-transparent material except
tissue paper
frosted glass
carton paper
the third color in the spectrum color is
red
yellow
green
a rainbow is formed when light rays pass through the
water surface
triangular prism
droplets of rain water
light is reflected ............... when it falls on a smooth and shiny reflecting surface
irregularly
regularly
and refracted
a pencil seems as if it's broken at water surface due to ................ of light
refraction
reflection
separation
the light rays passes in
zigzag lines
straight lines
no answer
