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

State the dependence of angle of deviation on the wavelength of light

State the ways by which the frequency of transverse vibrations of a stretch string can be increased.

The music system draws a current of 400 mA when connected to a 12 V battery.

1. What is the resistance of the music system?
2. The music system if left playing for several hours and finally the battery voltage drops and the music system stops playing when the current drops to 320 mA. At what battery voltage does the music system stop playing?

An element `""_ZS^A` decays to `""_85R^222` after emitting 2 α particles and 1 β particle.

Find the atomic number and atomic mass of the element S.

A radioactive substance is oxidized. Will there be any change in the nature its radioactivity? Give a reason for your answer

From the diagram given below. answer the question that follows:

1. What kind of pulleys are A and B?
2. State the purpose of pulley B.
3. What effort has to be applied at C just raise the load L = 20 kgf?
   (Neglect the weight of pulley A and friction)

A pulley system has three pulleys. A load of 120 N is overcome by applying an effort of 50 N. Calculate the Mechanical Advantage and Efficiency of this system.

Write a relationship between the angle of incidence and angle of refractions for a given pair of media.

What do you understand by the term Scattering of light?

Give one reason for Ultrasonic waves use for echo depth sounding purpose.

Why are the Ultrasonic waves are not audible to us?

Arrange α, β, and γ rays in ascending order with respect to their

1) Penetrating power.

2) Ionising power

3) Biological effect

In a cathode ray tube, what is the function of anode?

State the energy conversion taking place in a cathode ray tube

Write one use of cathode ray tube.

Represent the change in the nucleus of a radioactive element when a β particle is emitted.

Under which conditions does the nucleus of an atom tend to radioactive?

Name one factor that affects the lateral displacement of light as it passes through a rectangular glass slab.

Rajan exerts a force of 150 N in pulling a cart at a constant speed of 10 m/s^-1. Calculate the power exerted.

The speed of light in glass is 2 × 10⁵ km/s. What is the refractive index of glass?