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Question: An electron is moving with a velocity of \(\frac{c}{10}\). The de-Broglie wavelength associated with...

An electron is moving with a velocity of c10\frac{c}{10}. The de-Broglie wavelength associated with it will be –

A

0.48 × 10–10 m

B

0.24 × 10–10 Å

C

0.24 × 10–10 m

D

1.24 × 10–10 m

Answer

0.24 × 10–10 m

Explanation

Solution

l = hmv\frac{h}{mv}= 6.62×10−349.1×10–31×3×107\frac{6.62 \times 10^{- 34}}{9.1 \times 10^{–31} \times 3 \times 10^{7}}

l = 0.24 × 10–10 m