To observe object in outer space

To observe tiny objects

To observer away objects on earth

To observer the condition above the surface of the ocean from a submarine

Properties of light:

Light travels in a straight line

Properties of light:

Sound travels faster than light

Properties of light:

Light cannot penetrate opaque surface

Properties of light:

The shadow is formed when light rays are blocked by a transparent object

Law of reflection:

_(a)_ , _(b)_ and _(c)_ all lie on the same plane.

Law of reflection:

The _(a)_ is equal to the _(b)_.

Name the two medium where the pencil stays in.

When light enters more dense medium from a less dense medium at an angle, the light ______ the normal line

When light enters less dense medium from a denser medium at an angle, the light ______ the normal line

Subtraction of colour is the process of ____ of light by coloured filter

For a plane mirror, the image formed is virtual

For a plane mirror, the distance of the image formed is closer than the distance of the object from mirror

For the plane mirror, the image size is equal to the size of the object.

For the plane mirror, there is no difference between the shape of the image and the shape of the object.

Refraction of light occurs when light travels through two mediums of ____ densities

Light rays refracted ____ the normal when it travels from a less dense medium to a denser medium.

Light rays refracted ____ the normal when it travels from a denser medium to a less dense medium.

Light ray is ____ when the incident ray is parallel to the normal line of the barrier between the two medium.

Natural phenomena caused by scattering of light