MCQ
The value of Planck's constant is
  • $6.63 \times {10^{ - 34}}J{\rm{ - }}\sec $
  • B
    $6.63 \times {10^{34}}J/\sec $
  • C
    $6.63 \times {10^{ - 34}}kg{\rm{ - }}{m^2}$
  • D
    $6.63 \times {10^{34}}kg/\sec $

Answer

Correct option: A.
$6.63 \times {10^{ - 34}}J{\rm{ - }}\sec $
a
Planck's constant is a physical constant which is denoted by ' $h$ '. It was given by Max planck. It value is $6.626 \times 10^{-34} \,Js$.

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