First slide

Matter waves (DC Broglie waves)

Question

The momentum of a photon of an electro magnetic radiation radiation is $3.3 \times 10^{- 29} k g - m / s$ . What is the frequency of associated waves?
$(h = 6.6 \times 10^{- 34} J - S and c = 3 \times 10^{8} m / s)$

Moderate

A

$3 \times 10^{3} H z$
B

$6 \times 10^{3} H z$
C

$7.5 \times 10^{12} H z$
D

$1.5 \times 10^{13} H z$

Solution

$p = \frac{h ν}{c} \Rightarrow ν = \frac{p c}{h} = \frac{3.3 \times 10^{- 29} \times 3 \times 10^{8}}{6.6 \times 10^{- 34}} H z = 1.5 \times 10^{13} H z$

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