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

A uniform metre rule of mass 100g is balanced on a fulcrum at mark 40cm by suspending an unknown mass m at the mark 20cm.

To which side the rule will tilt if the mass m is moved to the mark 10cm ?

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?

Which of the following remains constant in a uniform circular motion, Speed or Velocity, or both?

Name the force required for uniform circular motion. State its direction.

Define Uniform circular motion.

Is it possible to have an accelerated motion with a constant speed? Explain.

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?