Question Detail

PHY 104 PHY 104 Past Questions Objective Question
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Question

What is the de Broglie wavelength of a 10 g bullet moving at 400 m/s?
Options
A 3.75 × 10⁻³⁴ m
B 1.66 × 10⁻³⁴ m
Correct Answer
C 5.34 × 10⁻³⁴ m
D 6.34 × 10⁻³⁴ m
Correct Answer

Option B is the correct answer.

Detailed Explanation

λ = h/p = h/(mv) = 6.626e-34 / (0.01 × 400) = 6.626e-34 / 4 = 1.6565 × 10⁻³⁴ m ≈ 1.66 × 10⁻³⁴ m.

Hint

Use de Broglie wavelength: λ = h/p.

Question Info

Course: PHY 104
Topic: PHY 104 Past Questions
Type: Objective
Difficulty: Not specified
Question 863 of 947
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