Calculate the momentum of a photon of light that has a frequency of 5.09 x 10^14 hz.

Momentum of a photon,

Explanation:

It is given that,

The frequency of light,

We need to find the momentum of a photon. The relation between momentum and wavelength is given by :

Since,

, c is the speed of light

So, the momentum of a photon is . Hence, this is the required solution.

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.