Light Shadows A...

Objects which partially allow light to pass through them are called

Light is a form of

The white light consists of

A tube light is a

Light travels in

Which kind of image is formed in a plane mirror?

In a plane mirror, the distance of an image from the mirror is

Which of the following mirrors is used in a periscope?

John is 130 cm tall and standing at a distance of 3 m away from a plane mirror. What will be the distance between John and his image?

What is the angle of reflection in the figure as shown below?

small air bubble in a glass block when seen from above appears to be raised because of

If the speed of light in a medium A is slower than in a medium B, which of the following statements is true?

A concave lens always gives

What happens to the power of a lens if its focal length is increased?

A magnifying glass forms

In the spectrum of white light by a prism, which colour is at the extreme end opposite to the base of the prism?

White light breaks up into seven colours due to

Choose the incorrect statement.

Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?

At noon, the sun appears white as