If the fraction of the atoms of a radioactive material left after 120years is \(\frac{1}{64}\), what is the half-life of the material? \(\frac{1}{64}\)
In the diagram shown, which of the simple pendulum will resonate with P when set into oscillation?
The time rate of loss of heat by a body is proportional to the
A positively charged rod X is brought near an uncharged metal sphere Y and is then touched by a finger with X still in place. When the finger is removed, the result is that Y has
Electrical appliances in homes are normally earthed so that
