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If c is the velocity of electromagneti...

If
c is the velocity of electromagnetic radiation
e is the charge of an electron
m is the mass of an electron and
h is the Planck's constant,
then the combination of these universal constants that is dimensionless, is

A

`me^(2)//(hc)`

B

`ch//(me)`

C

`mc^(2)//h`

D

none

Text Solution

Verified by Experts

`h rarr ML^(2)T^(-1)`
`c rarr LT^(-1)`
`e rarr IT`
`m rarr M`
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