iTeachChem•2y ago

dimensional analysis

first one. I cant understand what is the logic behind this question everytime i try to solve it i get it wrong

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iTeachChem Helper•6/9/24, 3:35 AM

@Gyro Gearloose

iTeachChem Helper•6/9/24, 3:35 AM

Note for OP

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Opt•6/9/24, 3:36 AM

b is the answer right?

Opt•6/9/24, 3:36 AM

@Gaurav

Opt•6/9/24, 3:38 AM

The logic is that in the others, length,velocity, and time can be expressed in terms of each other so it's fine if any two out of the three are present. But mass cannot be expressed in terms of any of the other three. Therefore, mass needs to compulsorily be present as one of the three fundamental quantities