(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Physics

State two advantages of producing electricity from solar energy.

State two disadvantages of producing electricity from solar energy.

How is the volume of water affected when it boils at 100℃?

What is wind energy?

How is wind energy used to produce electricity?

How much electric power is generated in India using the wing energy?

State two advantages of using wind energy for generating electricity.

State two disadvantages of using wind energy for generating electricity.

What is hydro energy?

Explain the principle of generating electricity from hydro energy.

How much hydroelectric power is generated in India?

What is nuclear energy?

Explain the principle of producing electricity using the nuclear energy.

When ice melts, its volume ______.

Describe in brief how would you determine the approximate focal length of a convex lens.

The following  diagram shows the experimental set up for the determination of focal length of a lens using a plane mirror.

1. Draw two rays from the point O of the object to show the formation of image I at O itself.
2. What is the size of the image I?
3. State two more characteristics of the image I.
4. Name the distance of the objects O from the optical centre of the lens.
5. To what point will the rays return if the mirror is moved away from the lens by a distance equal to the focal length of the lens?

State two advantages of using nuclear energy for producing electricity.

State two disadvantages of using nuclear energy for producing electricity.

State the energy transformation on the following:

Electricity is obtained from wind energy.

State the energy transformation on the following:

Electricity is obtained from hydro energy.