Substances which allow only partial transmission of light to pass through them are called
Opaque substances
Luminous substances
Transparent substances
Translucent objects
______________ happens on a full moon day.
Lunar eclipse
Solar eclipse
Linear eclipse
None of these
_________ invented Telescope.
C.V Raman
Galileo
Issac Newton
Einstein
Objects that cast shadow are _________ objects.
Transparent
Opaque
Luminous
Translucent
An object which is capable of giving light is called
Bio luminous bodies
Source of light
Non-luminous bodies
Luminous bodies
The substances which do not allow the light to pass through them are called
Non luminous bodies
Translucent substances.
_____________ occurs when earth comes in between sun and moon.
When moon comes in between the earth and sun and cast its shadow on earth, it is called
Penumbra region
______________ is an important feature of light that it always travels in a straight line when it travels in the same medium
ray of light
rectilinear propagation if light
source of light
none of these
_________ is a narrow path along which the light travels.
Ray
Beam
Penumbra
Umbra
