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Calculate the number of significant figu...

Calculate the number of significant figures in the following values :
(a) Planck's constant = `6.626 xx 10^(-34)` J s
(b) Avogadro number = `6.023 xx 10^23`
(c) Velocity of light = `3.0 xx 10^8 m s^(-1)`
(d) Electronic charge = `1.602 xx 10^(-19)` C

Text Solution

Verified by Experts

a) `6.626 xx 10^(-34)` J s = 4 significant figures
(b) `6.023 xx 10^23 = 4` significant figures
(c) `3.0 xx 10^8 ms^(-1) =2` significant figures
(d) `1.602 xx 10^(-19)` C = 4 significant figures.
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Knowledge Check

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    B
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