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If the half-life of a material is 10 yr, then in what time, it becomes 1/4th part of the initial amount
Options
(a) 15 yr
(b) 20 yr
(c) 25 yr
(d) 30 yr
Correct Answer:
20 yr
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Radioactivity
(83)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A coil of resistance 20 ohm and inductance 5H is connected with a 100V battery
- Three blocks A,B and C of masses 4 kg, 2 kg and 1 kg respectively are in contact
- A thin and circular disc of mass M and radius R is rotating in a horizontal plane
- Eight drops of a liquid of density ρ and each of radius a are falling through air
- A magnet of length 10 cm and magnetic moment 1 A-m² is placed
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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