The momentum p of a photon is related to its energy E by p = c E , where c is the speed of light. The SI unit and dimensions of p are

p = C E has units kg m ( s ) − 1 and dimensions [ L T − 1 ] [ M L 2 T − 2 ] = [ M L T − 1 ] .

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Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousEasy2 minQB

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The momentum $p$ of a photon is related to its energy $E$ by $p = \frac{E}{c}$ , where $c$ is the speed of light. The SI unit and dimensions of $p$ are

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Answer:

Solution:

$p = \frac{E}{C}$
has units kg $m (s)^{- 1}$
and dimensions
$\frac{[ M L ^{2} T ^{- 2} ]}{[ L T ^{- 1} ]}$
$= [M L T^{- 1}]$ .

Stream:JEESubject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous

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