What are the factors affecting surface tension

Explanation:

Factors affecting surface tension includes;

There are three factors that affect surface tension.

Temperature- the surface tension of a liquid decreases with increase in temperature.

Soluble impurities - the presence of soluble impurities may increase or decrease the surface tension.

Insoluble impurities- insoluble impurities decrease the surface tension.

0.122 m

Explanation:

We can imagine the hotspots in the microwave oven to correspond to the crests of the waves, so the distance between two hotspot is just the wavelength of the waves.

The wavelenght of an electromagnetic wave is given by

where

is the speed of light

f is the frequency of the wave. In this case,

so the wavelength is