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

What are α-and β-radiations?

The figure shows a radioactive source S placed in a thick-walled lead container. The radiations given off pass through a magnetic field acting in direction perpendicular to the plane of paper inwards as shown by X. Copy the diagram and show the path of radiations. Explain why the source is kept in a thick-walled lead container.

State the principle of moments.

A beam of α, β and γ rays is travelling through a certain region in space.

1. Arrange them in ascending order of ionising power.
2. Which of the above will pass undeviated if subjected to an electric field?
3. With respect to your answer to part (b) above, what will be the change in the nucleus of an atom after such a ray is emitted.

A metal foot ruler is held at the edge of a table. It is pressed at its free end and then released. It vibrates.

1. Name the vibrations produced.
2. State one way to increase the frequency of these vibrations.

Which nuclear radiation will travel undeviated in an electric field?

Which of the following radiations suffer maximum deflection in a magnetic field?

O is a luminescent particle trapped inside a glass block. A student traces the path of rays coming out of it and reflecting over a plane mirror as shown in the diagram below.

Complete the table, using the labels from the figure. The first label is done for you.

What mass of ice at 0°C added to 2.1 kg water, will cool it down from 75°C to 25°C? Given Specific heat capacity of water = 4.2 Jg^-1 °C^-1, Specific latent heat of ice = 336 Jg^-1.

State one use of a fixed pulley.

A tuning fork is vibrating in air. State whether the vibrations are natural or damped?

The figure below shows a dual control switch circuit use to light a bulb.

1. Complete the circuit so that bulb is switched on.
2. Mark the supply terminals with L and N to indicate live and neutral wires.

Arrange the α, β and γ radiations in ascending order of their penetrating power.

The distance between two bodies is doubled. How is the magnitude of the gravitational force between them affected?

A uniform half meter rule balances horizontally on a knife-edge at 29 cm mark when a weight of 20 gf is suspended from one end

1) Draw a diagram of the arrangement

2) What is the weight of the half meter rule?

A lens forms an upright and diminished image of an object when the object is placed at its focal point. Name the lens and draw a ray diagram to show the image formation.

To which wire of a cable in a power circuit should the metal case of geyser be connected.

Give an example of a non-contact force which is always of attractive nature

On what factor does the position of the center of gravity of a body depend?

Explain the motion of a planet around the Sun in a circular path.