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

Suggest one effective way for the safe disposal of nuclear waste.

Small air bubbles rising up a fish tank appear silvery when viewed from some particular angle is due to the ______.

Which characteristic of sound is affected due to the larger surface of a school bell?

How can one stop the radiations escaping from a nuclear reactor in a nuclear power plant?

State one factor that affects the magnitude of induced current in an AC generator.

An endoscope uses optic fiber to transmit high resolution images of internal organs without loss of information. The principle of light that is used by the optic fiber is based on ______.

The diagram below shows a fish in the tank and its image seen on the surface of the water.

Name the phenomenon responsible for the formation of this image.

State two differences between normal reflection and total internal reflection.

Two resistors having resistance 8 Ω and 12 Ω are connected in parallel. Find their equivalent resistance.

Four resistors each of resistance 5 Ω are connected in parallel. What is the effective resistance?

You have three resistors of values 2 Ω, 3 Ω, and 5 Ω. How will you join them so that the total resistance is less than 1 Ω? Draw a diagram and find the total resistance.

Two resistors of resistances 2 Ω and 3 Ω are connected in parallel to a cell to draw current 0.5 A from the cell. Draw a labelled diagram of the arrangement

Two resistors of resistance 2 Ω and 3 Ω are connected in parallel to a cell to draw current 0.5 A from the cell. Calculate the current in each resistor.

A particular resistance wire has a resistance of 3·0 ohm per metre. Find the resistance of 5 m length of a wire of the same material, but with twice the area of cross section.

Water boils at 120°C in a pressure cooker. Explain the reason.

Copy the diagram given below and complete the path of the light ray till it emerges out of the prism. The critical angle of glass is 42°. In your diagram mark the angles wherever necessary.

A ray of light XY passes through a right-angled isosceles prism as shown below

1. What is the angle through which the incident ray deviates and emerges out of the prism?
2. Name the instrument where this action of the prism is put into use.
3. Which prism surface will behave as a mirror?

What determines the pitch of a sound?

Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.

Name the subjective property of sound related to its frequency.