Radioactivity — Physics STD 10 — Question

What is the value of specific heat of water?

Name a machine which can be used to multiply force and change the direction of force applied.

How does the speed of light in glass change on increasing the wavelength of light?

State the energy changes which take place when:
A body released from rest from the top of a building.

If, in a central heating system, steam enters a radiation pipe at 100°C and water leaves the radiation pipe at 100°C, can this radiation pipe heat a room? Give an explanation for your answer.

What is the criteria for selecting a fuse wire?

What do you mean by a solenoid?

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

State the energy change in the following device while in use:
A glowing electric bulb.

State two factors on which the strength of an induced current depends.