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After 300 days, the activity of a radioactive sample is 5000 dps (disintegration per second). The activity becomes 2500 dps after another 150 days. The initial activity of the sample (in dps) is
Options
(a) 20000
(b) 10000
(c) 7000
(d) 25000
Correct Answer:
20000
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 current in a self-inductance L=40 mH is to be increased uniformly from 1A to 11 A
- An engine pumps water continuously through a hose. Water leaves the hose
- An engine is moving towards a wall with a velocity 50 ms⁻¹ emits a note of 1.2 kHz.
- The difference in the lengths of a mean solar day and a sidereal day is about
- The moment of inertia of a semicircular ring about the centre is
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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