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What is the dimensional formula for calorie?

calorie is the unit of energy hence it will have the dimensional formula as that of energy [ML2T-2]

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calorie is a unit in the category of Energy. It is also known as gram calerie. Gram Calorie (gram-cal) has a dimension of ML2T -2 where M is mass, L is length, and T is time. It can be converted to the corresponding standard SI unit J by multiplying its value by a factor of 4.18674.

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then what will be the dimensional formula of a photon ???

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Energy=work
Force ?distance
MLT-2?L=[ML2T-2]
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