SATHEE: Atomic Structure Question 172

Atomic Structure Question 172

Question: What will be de-Broglie wavelength of an electron moving with a velocity of $1.2 \times 10^{5}, m s^{- 1}$

Options:

A) $6.068 \times 10^{- 9}$

B) $3.133 \times 10^{- 37}$

C) $6.626 \times 10^{- 9}$

D) $6.018 \times 10^{- 7}$

Show Answer

Answer:

Correct Answer: C

Solution:

$λ = \frac{h}{p}$ , $p = m v$

$λ = \frac{h}{m v}$

$= \frac{6.62 \times 10^{- 34}}{9.1 \times 10^{- 31} \times 1.2 \times 10^{5}}$

$λ = 6.626 \times 10^{- 9} m$ .

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Atomic Structure Question 172

Question: What will be de-Broglie wavelength of an electron moving with a velocity of 1.2×105,ms−1

Options:

Answer:

Solution:

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Question: What will be de-Broglie wavelength of an electron moving with a velocity of $1.2 \times 10^{5}, m s^{- 1}$