If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
The correct sequence of energy transformation in the operation of an x-ray tube is
i. X-rays
ii. Kinetic energy of thermo electrons
iii. Potential energy of the target atoms
iv. Heat energy of the emitted electrons
iv, iii, ii, i
ii, iv, iii, i
iv, ii, iii, i
iii, iv, ii, i
Correct answer is A
No explanation has been provided for this answer.
In a nuclear reactor, chain reactions result from the release of
electrons
photons
neutrons
protons
Correct answer is C
No explanation has been provided for this answer.
an explosion is observed
the rainbow colours are seen
an emission spectrum is observed
dark lines are observed
Correct answer is C
No explanation has been provided for this answer.