Question

In: Physics

What is the linear momentum p and the wavelength λ associated with a light photon with...

What is the linear momentum p and the wavelength λ associated

with a light photon with energy (Ephoton=3×10−19 J)?

Expert Solution

The value provided in the question is as follows:

The formula relating energy of a photon with its momentum is:

Here, = Total Energy, = Magnitude of Momentum, = Speed of light and = Rest mass of particle.

Since the question is talking about a photon which is a massless particle, so and we get,

Using the value of provided in the question and , we get,

For the wavelength , we use the relation

Putting the values of , and , we get

Hence the linear momentum of the photon and its wavelength .

genius_generous answered 3 years ago

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