Objects that cast shadow are _________ objects.
Transparent
Opaque
Luminous
Translucent
______________ is a simple device which is used to take photographs of stationary objects
binoculars
telescope
pinhole camera
microscope
The emission of light given out by an organism is called
Luminescence
Bioluminescence
Optical luminescence
Non luminescence
Human body is
translucent
None of these
______________ happens on a full moon day.
Lunar eclipse
Solar eclipse
Linear eclipse
Substances which allow only partial transmission of light to pass through them are called
Opaque substances
Luminous substances
Transparent substances
Translucent objects
When moon comes in between the earth and sun and cast its shadow on earth, it is called
Penumbra region
The substances which do not allow the light to pass through them are called
Non luminous bodies
Translucent substances.
___________ is the primary source of light.
oil lamp
sun
stars
moon
An object which is capable of giving light is called
Bio luminous bodies
Source of light
Non-luminous bodies
Luminous bodies