How would you explain to someone that it’s possible to have more than one full moon in a month?

The possibility of occurring more than one full moon in a month can be proved by comparing single day of moon with the number of days of earth.

Explanation:

It is known that a single day of moon is equal to 14 days of earth. The full moon occurs when sunlight falls directly on moon or we can say the starting of a day in the moon.

So as the moon rotates slowly the direction of sun deviates from the moon and we can see that the size of the moon is reducing and finally no moon day means a day ended in the moon.

So as a single day of moon occurs after every 14 days of earth, it can be concluded that a month of 31 days can observe two full moon days as it has two 14 days interval in that month.

ice to water 1 water to vapour 2 latent heat

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.