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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 hollow sphere of radius 0.1m has a charge of 5×10⁻⁸C. The potential
- The horizontal range and maximum height of a projectile are equal.The angle of projection
- A parallel plate capacitor as a uniform electric field E in the space between the plates
- In a mass spectrometer used for measuring the masses of ions, the ions
- A tuning fork gives 4 beats with 50 cm length of a sonometer
Topics: Radioactivity (83)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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