Among the following, the least unit for length is:

  • A
    parsec
  • B
    nanometer
  • C
    fermi
  • D
    $ \mathring{A} $

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Similar Questions

Provide a table for the multiples and submultiples of various $SI$ units.

Lux is a unit of

If ${u_1}$ and ${u_2}$ are the units selected in two systems of measurement and ${n_1}$ and ${n_2}$ are their respective numerical values,then:

Match the items in Column-$I$ with their corresponding values in Column-$II$.
Column-$I$ Column-$II$
$(1)$ Light year $(a)$ $3.08 \times 10^{16} \ m$
$(2)$ Parsec $(b)$ $9.46 \times 10^{15} \ m$
$(3)$ $1 \ AU$ $(c)$ $1.496 \times 10^{11} \ m$

In an expression $a \times 10^{b}$:

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