The velocity v of a particle depends upon the time t according to the equation v=a+bt+cd+t. What is the dimension of c ?
A
c=[L]
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B
c=[T]
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C
c=[M]
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D
c=[ML]
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Solution
The correct option is Dc=[L] From the principal of homogeneity, [a]=[v]or[a]=[LT−1] [bt]=[v]or[b]=[v][t]=[LT−1][T] or, [b]=[LT−2] Similarly, [d]=[t]=[T] Further, [c][d+t]=[v]or[c]=[v][d+t] or, [c]=[LT−1][T]or[c]=[L]