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|The mass of a pi-meson (pion) is approximately how many times the mass of an electron?

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MediumQ. No. the-mass-of-a-pi-meson-pion-is-approximately-how-many-times-the-mass-of-an-electron

The mass of a pi-meson (pion) is approximately how many times the mass of an electron?

Last Updated: 28 Jun 2026

A50 times

B100 times

C200 times

D274 times

Correct Answer: 274 times

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Your Answer: D

Explanation

The correct answer is Option D — 274 times. The mass of a pion (pi-meson) is approximately 274 times the mass of an electron. Since electron mass = 9.1 × 10⁻³¹ kg, pion mass ≈ 274 × 9.1 × 10⁻³¹ kg ≈ 2.5 × 10⁻²⁸ kg.

Why other options are wrong:

Option A (50 times): Too low. The actual value is 274 times.

Option B (100 times): Incorrect. The actual ratio is 274.

Option C (200 times): Close but incorrect. The exact value is approximately 274.

Important Notes

π meson) has a mass approximately 274 times greater than the mass of an electron. Since the electron mass is 9.1 × 10⁻³¹ kg

Modern Physics

Science

Answer

274 times

Exam Info

Asked in: SSC, Railway, Banking and other competitive exams.
Also asked in: RRB NTPC, CHSL, State PCS and online mock tests.
Topic: Modern Physics

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