﻿ After two hours  of the initial amount of a certain radioactive isotope remains undecayed. The half life of the isotope is   : Kaysons Education

# After Two Hours  of The Initial amount Of A Certain Radioactive Isotope Remains undecayed. The Half Life Of The Isotope Is

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## Question

### Solution

Correct option is

30 min

Since , it follows that 2 hours = 4 half lives, or 1 half-life

hours

= 30 minutes.

Testing

#### SIMILAR QUESTIONS

Q1

If a hydrogen atom at rest, emits a photon of wavelength , the recoil of the atom of mass m is given by

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,

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Q10

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