Plane mirrors are arranged parallel to each other to get :
a single image
two images
a large number of reflected images
no image
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
Which of the following is used in the rear-view mirrors of vehicles ?
Plane mirror
Convex mirror
Concave lens
Any of these
The speed of light is
the same in all media
the greatest in vaccum
greater in air than in vaccum
does not change from medium to medium
Concave mirror is used in
Solar devices
Car headlights
Dentist's mirror
All of these
An image formed by a plane mirror is a/an
Virtual image
Areal image
Inverted image
None of these
A lunar eclipse occurs
on a new-moon night
on a full-moon night
when the moon is waxing
on any night
When an opaque object comes in the path of light it forms
an image with colours
shadow
black and white image
depends on the colour of light
Which of the following is transparent ?
Stone
Wood
Plastic
Glass
An ideal mirror
absorbs all the amount of light incident on it
refracts all the light
reflects all the light
none of the above
