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If 20% of a radiactive element decays in 10 days, then amount of original material left after 30 days is (approx)
Options
(a) 78%
(b) 62%
(c) 51%
(d) 48%
Correct Answer:
51%
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 charged particle enters a uniform magnetic field with a certain speed at right angles
- If an electron and a proton have the same de-Broglie wavelength, then the kinetic
- A long straight wire carrying current of 30A is placed in an external uniform
- Starting from the origin, a body oscillates simple harmonically with a period of 2s
- The kinetic energy of α-particle emitted in the α-dacay of ₈₈Ra²²⁶ is
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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