NCERT Ch-11 Light,Shadows and Reflections

if we cannot see through the object it is called luminous object

if we can see the object but not clearly it is called luminous object

if a object emits light of its own it is called luminous object

It is a reflection of an object

It is a dark patch

It is a dark area where light is blocked by a opaque object

in a pattern

in a circle

in a straight line

A image produced by a object Example: water

A image produced by a luminous object Example: Sun

A image produced by a opaque object Example: orange

Object that do not let light pass though are called opaque objects

Objects that let light pass though is called opaque objects

Objects which we can see but not very clearly

A pinhole camera is in the shape of a box.

A pinhole camera is a camera with lens

A pinhole camera is a simple camera, without lens, in the shape of a box.

True

False

Yes

No