Physics Questions and Answers

In a nuclear reactor, electricity can be generated through the following processes. Arrange the processes in the correct order.

i. The steam is used to drive turbines.
ii. The heat energy released is removed by passing water through the reactor.
iii. The turbines in turn generate electricity.
iv. The water then passes through some form of heat exchanger to produce steam

A nitrogen nucleus bombarded with an alpha particle produces an oxygen nucleus and a proton. The nuclear reaction for this process is \(^4_2H + ^{14}_2N \to ^{17}_{8}O + ^1_1H + Q\). Which of the following statements about the reaction is not correct?

The nucleon number and the proton number of a neutral atom of an element are 23 and 11 respectively. How many neutrons are present in the atom?

Production of x-ray tube begins with

A proton of wavelength \(\lambda_o\) is emitted when an electron in an atom makes a transition from a level of energy 2E. If the electron transits from \(\frac{4}{3}E_k\) to E level, determine the wavelength of the photon that would be emitted