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

Draw a graph between displacement and the time for a body executing free/natural vibrations.

Why is a cathode ray tube evacuated to a low pressure?

What happens if the negative potential is changed on a grid?

A block and tackle system has V.R. = 5.

Draw a neat labeled diagram of a system indicating the direction of its load and effort.

A block and tackle system has V.R. = 5.

Rohan exerts a pull of 150 kgf. What is the maximum load he can raise with this pulley system if its efficiency = 75%?

Name the wire in a household electrical circuit to which the switch is connected.

Name a gas caused by the Greenhouse effect

What is thermionic emission?

Name the unit in which the work function of a metal is expressed.

Complete the diagram as given above by drawing the deflection of radioactive radiations in an electric field

State any two precautions to be taken while handling radioactive substances.

Draw the diagram given below and clearly show the path taken by the emergent ray.

A ray of light passes from water to air. How does the speed of light change?

Which colour of light travels fastest in any medium except air?

Name a prism required for obtaining a spectrum of Ultraviolet light.

Light passes through a rectangular glass slab and through a triangular glass prism. In what way does the direction of the two emergent beams differ and why?

A nucleus `""_11^24Na`  emits a beta particle to change into Magnesium (Mg)

(i) Write the symbolic equation for the process.
(ii) What are numbers 24 and 11 called?
(iii) What is the general name of `""_12^24Mg `with respect to `""_11^24Na` ?

In a cathode ray tube state:
(i) the purpose of covering cathode by thorium and carbon.
(ii) the purpose of the fluorescent screen.
(iii) how is it possible to increase the rate of emission of electrons.

Why is the ratio of the velocities of light of wavelengths 4000Å and 8000Å in vacuum 1: 1?

Which of the above wavelengths has a higher frequency?