The main difference between X-rays and gamma rays is in their
The phenomenon used for explaining the formation of a rainbow in the sky is
Which of the following modes is the most economical method of transmitting electrical power over a long distance?
The correct sequence of ionization power of alpha particle, gamma ray, and beta particle respectively is
Four pieces of constantan wire, marked E, F, G, and H, each of length 1.0m, are at the temperature. Their respective diameters are 1 mm, 2 mm, 6 mm, and 10 mm. Which wire has the highest resistance?
