The de-Broglie wavelength for a He atom travelling at 1000 ms-1 (typical speed at room temperature ) is

ABC26PH0288 · Atomic Structure

Subject: Physical Chemistry · Chapter: Atomic Structure · Topic: Atomic Structure – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium

The de-Broglie wavelength for a He atom travelling at $1000 \mathrm{ms}^{-1}$ (typical speed at room temperature ) is

(a)$99.7 \times 10^{-12} \mathrm{m}$

(b)$199.4 \times 10^{-12} \mathrm{m}$

(c)$199.4 \times 10^{-18} \mathrm{m}$

(d)$99 \times 10^{-6} \mathrm{m}$

Answer

Answer (as printed): A

Explanation

No explanation was printed for this question.