Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Which is the correct unit for measuring nuclear radii
Text Solution
Verified by ExpertsThe correct answer is:
Option D
The radius of an atomic nucleus is extremely small, typically on the order of $10^{-15}\text{ m}$.
The appropriate units for different scales are:
Hence, Option D is the correct answer.
The appropriate units for different scales are:
- Fermi (or femtometer): $1\text{ Fermi (fm)} = 10^{-15}\text{ m}$. This unit is specifically used to measure nuclear dimensions and radii.
- Angstrom: $1\text{ \AA} = 10^{-10}\text{ m}$, which is used to measure atomic radii and wavelengths of light.
- Micron: $1\text{ }\mu\text{m} = 10^{-6}\text{ m}$, used for microscopic objects like biological cells.
- Millimetre: $1\text{ mm} = 10^{-3}\text{ m}$, used for macroscopic lengths.
Hence, Option D is the correct answer.
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