Physics Past Questions and Answers

After reflection from the concave mirror, rays of light from the sun converges.

Dispersion of white light is the ability of white light to _____________

A piece of a radioactive material contains 100 atoms. If its half-life is 20 seconds, the time taking for 124 atoms to remain is _____________

The percentage of the original nuclei of a sample of a radioactive substance left after 5 half-live is _____________

The particle that is responsible for nuclear fission in a nuclear reactor is _____________