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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
- The de-Broglie wavelength of an electron in the first Bohr orbit is
- An electric current passes through a long straight wire
- At 10⁰C the value of the density of a fixed mass of an ideal gas divided by its pressure
- If a spring of spring constant k stretched by a length x under tension T, the energy
- A fluid is in streamline flow across a horizontal pipe of variable area of cross section
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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