Force, Work, Power and Energy — Physics STD 10 — Question

A blade, fixed at one end, is made to vibrate by pressing its other end and then releasing it. State one way in which the frequency of vibrations of the blade can be lowered.

Give one example of damped vibrations

What happens to the heat supplied to a substance when the heat supplied causes no change in the temperature of the substance?

What do you mean by Atomic mass

Can a transformer work when it is connected to a D.C. source? Give a reason.

Two resistors of 4Ω and 6Ω are connected in parallel to a cell to draw 0.5 A current from the cell.
Draw a labelled circuit diagram showing the above arrangement.

How does the colour code of wires in a cable help in house wiring?

Arrange the following radiations in the order of their increasing wavelength:
X-rays, infrared rays, ratio waves, gamma ray and micro waves?

Which part of the atom undergoes a change in the process of radioactive decay?

Name the scientist who discovered radio waves