## Related questions with answers

Question

Give an answer for the following questions.

(a) What is the wavelength of a photon whose momentum is equal to that of an electron with a speed of $2000 \mathrm{~m} / \mathrm{s}$ ?

(b) What is the ratio of their energies?

Solution

VerifiedAnswered 1 year ago

Answered 1 year ago

Step 1

1 of 9The condition of this problem can be written as:

$\begin{align}p_\gamma = p_e =m_ev_e\end{align}$

where

- $v_e = 2000\;\mathrm{m/s}$
- $m_e = 9.11\cdot10^{-31}\;\mathrm{kg}$

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