Light Test - 3...

By which method can we change the direction of light?

How many colours are present in the white light?

An image is moving at the same rate as the object towards the mirror. What will be the state of the mirror?

A truck is reversing at the speed of 10 m/s. A driver sees the image of a parked bicycle in its rear view plane mirror. At what speed does the image of the bicycle appears to be approaching the driver?

The person has lost the screw of his wrist watch while repairing it. Which of the following items will help him while searching for the screw?

Inner surface of a spoon is analogous to which of the following types of mirror?

If a 6 m high candle is placed in front of a plane mirror, then what will be the height of the image?

What is the diagrammatic representation of a concave lens?

Why is the rear view mirror of a vehicle convex in shape?

Which of the following is not a feature of a convex lens?

One see a rainbow with one's

The distance between an image of a ball and the ball itself is 15 m. If the ball rotates 2 m toward the mirror, what will be the distance between the image and the object?

What is the nature of the reflecting surface used in the bell of bicycles?

Which of the following types of lens bend(s) the incident light outwards?

Which of the folllowing is not a use of a concave mirror?