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

Name the factors affecting the critical angle for the pair of media.

State the relation between the critical angle and the absolute refractive index of a medium.

Which colour of light has a higher critical angle? Red light or green light.

Draw the diagram of a right-angled isosceles prism which is used to make an invented image erect.

How does the wave pattern of a loud note differ from that of a soft note? Draw a diagram.

Angle of deviation is the angle which the ______ ray makes with the direction of ______ray. 

What do you understand by the deviation produced by a prism? Why is it caused? 

How is loudness of sound related to the intensity of wave producing it?

Comment on the statement 'loudness of sound is a subjective quantity, while intensity is an objective quantity.

Name the unit used to measure the sound level.

State the factor that determine the loudness of the sound heard.

Name the characteristic of the sound affected due to a change in its amplitude.

By reducing the amplitude of a sound wave, its ______.

The current induced in a closed circuit only if there is ______.

A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is ______.

Name and state the principle of a simple a.c. generator. What is its use?

What determines the frequency of a.c. produced in a generator?

Draw a labelled diagram of a simple a.c. generator.

In an a.c. generator the speed at which the coil rotates is doubled. How would this affect

1. the frequency of output voltage,
2. the maximum output voltage is doubled.

Suggest two ways in an a.c. generator to produce a higher e.m.f.