Sunlight on earth is
convergent
divergent
parallel
irregular
An ideal mirror
absorbs all the amount of light incident on it
refracts all the light
reflects all the light
none of the above
Nature of the shadow depends on
the relative distance between the source of light and the object
the relative size of the source of light and the object
the angle between the source of light and the object
all of the above
Umbra is a region of
complete darkness
partial darkness
partial brightness
complete brightness
Which of the following is transparent ?
Stone
Wood
Plastic
Glass
Which of the following is used in the rear-view mirrors of vehicles ?
Plane mirror
Convex mirror
Concave lens
Any of these
In a concave mirror object is beyond c then the image formed is at
F
Beyond C
At C
Between F and C
Concave mirror is used in
Solar devices
Car headlights
Dentist's mirror
All of these
Opaque objects
allow the light to pass through them.
do not let the light to pass through them.
absorb some amount of light and let the remaining to pass through them.
allows the light from natural sources and rejects if it is from artificial sources.
Water is
transparent
translucent
opaque
polymer
