Physics Past Questions and Answers

I. Density of the liquid.
II. Depth below the surface of the liquid.
III. Surface area of the liquid.
In which of the statement above will pressure be dependent?

Which of the following could be effectively used to reduce friction?

Which of the following types of waves needs a medium for propagation?

Which of the following electromagnetic waves has the highest frequency?

A perfect emitter or absorber of radiant energy is a