Physics

# Using dimensional analysis show that(i) 1 J = $10^7$ erg(ii) 1 N = $10^5$ dyne

##### SOLUTION
$(i) \;\;\;\;\;1J = 1 \;kgm^2s^{-2} = 1000g \times (100cm)^2 \times s^{-2}$
$= 10^7 \; gcm^2s^{-2}$
$= 10^7 erg$

$(ii) \;\;\;\;\;1N = 1 \;kgms^{-2} = 1000g \times (100cm) \times s^{-2}$
$= 10^5\; gcms^{-2}$
$= 10^5 dyne$

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Subjective Medium Published on 18th 08, 2020
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