Question

The energy of an einstein of radiation of
wavelength 400 nm is than that
of radiation of 300 nm​

Answer 1

Answer:

Explanation:

here is the answer

Answer 2

Given: the wavelengths given are 400nm and 300nm.

To find: the difference in the energy

Step-by-step method:

Step 1 of 2

The plank's equation can be used to find the energy, it is given be the formula:

$E=hv=\frac{hc}{wavelength}$

For 400nm the energy is

$E=\frac{6.626*10^{-34} *3*10^{8} }{400*10^{-9} } \\E=0.049695*10^{-17}\\E=4.9695*10^{-19}$

Step 2 of 2

For 300nm the energy is

$E=\frac{6.626*10^{-34} *3*10^{8} }{300*10^{-9} } \\E=0.06626*10^{-17}\\E=6.626*10^{-19}$

The energy of 300nm wavelength is more than 400nm by $1.6565*10^{-19}$.