Question
Which term is used to describe the cultivation method
which involves clearing forest patches and cultivating crops for a few years before abandoning the site for fallow?Solution
This method, practiced in various regions, involves cultivating crops for a few years before abandoning the site for fallow
A pulse of light duration 10-5 s is absorbed fully by a little object initially at rest. If the power of this pulse is 45 × 10-3...
The wave nature of matter was proposed by:
What was invented by 'Zacharias Janssen'?
A cylindrical conductor of length L and radius R has its radius increasing linearly from R at one end to 2R at the other. A constant current I flows thr...
A sample contains equal numbers of two isotopes X and Y, each with half-lives of 10 days and 20 days respectively. What is the ratio of activities Aâ‚“ ...
An electron in a hydrogen atom de-excites from the 4th to the 2nd level. The wavelength of emitted photon falls in which series?
A capacitor filled with dielectric constant K is connected to a battery. If dielectric is removed, how much charge flows back?
A block of mass m rests on a smooth wedge of mass M, which in turn rests on a smooth horizontal surface. The wedge is accelerated horizontally with acc...
A sound wave of frequency 500 Hz travels at 340 m/s. Find its wavelength.
Which law states that the induced electromotive force (e.m.f.) is proportional to the rate of change of magnetic flux linkage?
