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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 threshold wavelength for photoelectric emission from a material is 4800 Å.
- The ratio of the acceleration for a solid sphere(mass m and radius R)rolling down
- A step-up transformer operates on a 230 V line and supplies a current of 2 A.
- Wave nature of light is verified by
- A spring of spring constant 5 x 10³ N/m is stretched initially by 5 cm
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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