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
Water is
transparent
translucent
opaque
polymer
Light is a form of energy that causes the sensation of
hearing
heat
sight
touch
Which of the following is transparent ?
Stone
Wood
Plastic
Glass
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
An image formed by a plane mirror is a/an
Virtual image
Areal image
Inverted image
None of these
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
Radius of curvature, r =
f/2
2f
2/3 f
f
The natural source of light is
Sun
Electric lamp
Candle flame
Kerosene lamp
An ideal mirror
absorbs all the amount of light incident on it
refracts all the light
reflects all the light
none of the above
