Sound — Physics STD 10 — Question

Give one example when:
Mechanical energy to heat energy.

How does a magnetic field set up by a solenoid change when number of turns are increased?

(a) State expression for electric power in terms of current and resistance.
(b) Two fuse wires of same length are rated 4 A and 16 A . Which of the fuse wires is thicker and why?

Energy can exist in several forms and may change from one form to another. For the following, state the energy changes that occur in:
respiration

Name two examples in which the mechanical energy of a system remains constant.

Name the physical quantity which is equal to the energy of a body.

If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?

What do you mean by Mass number.

A flat coil ABCD is freely suspended between the pole pieces of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field.

Name an instrument which makes use of the principle stated above.

What are free vibrations?