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anygoal [31]
3 years ago
6

The energy of a photon is E=\frac{hc}{\lambda}E = h c λ where c is the speed of light and h is a constant known as Planck's cons

tant. If a red photon has twice the wavelength of a violet photon, then the energy of the red photon is the energy of the violet photon. This shows that short-wavelength photons carry proportionally energy than long-wavelength photons.
Physics
1 answer:
Basile [38]3 years ago
5 0

Answer: As a red photon has a twice of the wavelegth to the violet photon then the red photon has half energy of the violet photon.

Explanation: In order to explain the above statement we have to consider the Plack postulate where the energy of photons depend directely of the frequency . As the wavelength and frequency are related by :

c= λ*υ c is the speed of light,  λ is the wavelength and υ the frequency of the photon

so the energy of  photons are inversely proportional to the wavelength.

As a consequence twice wavelengtht means half energy for the photon.  

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3 years ago
Show solution for # 4
velikii [3]
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The momentum before colision is equal with the momentum after colision:

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=> m1v1 = (m1+m2)v3 => v3 = m1v1/(m1+m2) now u should do the math i think v3 prox 2,4 but not sure u should caculate
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