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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@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.b is the answer right?
@Gaurav
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
yes
but like in option c velocity has dimension of time
so i have been taught that funda qties are independent of any other physical qties
No, because it is now a fundamental quantity in option c, time has dimensions of velocity.
Is this good @Gaurav ?
+solved @Opt
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