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15 questions
what is the speed of light?
-3,00,000 km per second
-2,00,000 km per second
-4,00,000 km per second
-5,00,000 km per second
Light is a form of ______ that is essential for the existence of life.
chemical
expression
term
energy
Nothing can travel faster than light in the whole universe
False
True
The object that does not produce it's own light is called
Luminous objects
Dark
Bright
Non Luminous objects
Objects that produce their own light are called
Luminous objects
Non luminous objects
Bright
Dark
Light travels in a _________ path
Straight
Curved
Slanting
None of these
Light is formed from ___________ object.
Opaque
Translucent
Transparent
light passes through opaque object
true
false
light passes through transparent objects
true
false
shadows only have one color
true
false
during a ____________ eclipse the moon casts a shadow on the earth
solar
lunar
during a ____________ eclipse the earth forms a shadow on the moon
lunar
solar
What is the best explanation for a person seeing himself in the mirror?
reflection
refraction
absorbed
flipped
When light bounces back it is _____
Reflected
Refracted
Optical Density
Absorbed
Which term describes when light bounces off of a smooth surface?
Refraction
Transmission
Reflection
Absorption
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