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CBSE-XI-Physics

40: Electromagnetic Waves

with Solutions -
Qstn# ii-3 Prvs-QstnNext-Qstn
  • #3
    Dimensions of 1/(µ0ϵ0) is
    (a) L/T
    (b) T/L
    (c) L2/T2
    (d) T2/L2.
    digAnsr:   c
    Ans : (c) L2/T2
    The speed of light, `` C=\frac{1}{\sqrt{{\mu }_{0}{\in }_{0}}}``.
    The dimensions of `` \frac{1}{\sqrt{{\mu }_{0}{\in }_{0}}}`` are of velocity, i.e. L/T .
    ​Therefore, `` \frac{1}{{\in }_{0}{\mu }_{0}}`` will have dimensions L2/T2​.
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