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

The diagram in shows a coil of several turns of copper wire near a magnet NS. The coil is moved in the direction of arrow shown in the diagram.

1. In what direction does the induced current flow in the coil?
2. Name the law used to arrive at the conclusion in part (i).
3. How would the current in coil be altered if
   1. the coil has twice the number of turns,
   2. the coil was made to move three times fast?

Why are the alpha particles not used in radio therapy?

Name the subjective property of light related to its wavelength.

How does frequency affect a musical sound?

Name the factors which determine the loudness of a note.

Name the factors which determine the pitch of a note.

Name the factors which determine the quality of a note.

How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?

How do you account for the fact that two strings can be used to give notes of the same pitch and loudness but of different quality?

The same musical note when played on a piano and when played on a flute sounds different.

Name one main factor on which each character such as intensity, pitch, and quality of musical sound depends.

When a gun is fired at a distance, why is it that the flash is seen almost instantaneously while the sound is heard a little later?

Which characteristics of sound will change if there is a change in its amplitude and its waveform.

How is it possible to detect the filling of a pitcher under a tap by hearing its sound at a distance?

Three musical instruments give out notes at the frequencies listed below. Flute: 400 Hz; Guitar: 200 Hz; Trumpet: 500 Hz. Which one of these has the highest pitch?