If Protons Decay with a Half-Life of 10³⁰ Years,how Long

question 42

Multiple Choice

If protons decay with a half-life of 10³⁰ years,how long will it take for 1% of the protons in the universe to decay?

• A)6.3 * 10²⁷ yr
• B)1.0 * 10²⁸ yr
• C)1.5 * 10²⁸ yr
• D)9.9 * 10³¹ yr
• E)1.1 * 10³² yr

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