Science
MediumQ. No. what-is-the-approximate-order-of-nuclear-radius
What is the approximate order of nuclear radius?
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A10⁻¹⁴ cm
B10⁻¹⁰ cm
C10⁻¹² cm
D10⁻⁸ cm
Correct Answer: 10⁻¹² cmYour Answer: C
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The correct answer is Option C — 10⁻¹² cm. The radius of an atomic nucleus is of the order of 10⁻¹² cm (equivalent to 10⁻¹⁵ m or 1 femtometer = 1 fermi). The formula for nuclear radius is R = R₀ × A^(1/3), where R₀ ≈ 1.2 × 10⁻¹⁵ m.
Why other options are wrong:
Option A (10⁻¹⁴ cm): This value does not correspond to any standard nuclear radius. It is between atomic and nuclear size.
Option B (10⁻¹⁰ cm): This is the atomic radius order (Angstrom scale = 10⁻¸ cm), not nuclear.
Option D (10⁻⁸ cm): This is the approximate order of the size of an atom, NOT the nucleus.
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