1.

If A=B+ (C)/(D+E)the dimensions of B and Care [M^(0)LT^(-1)] and [M^(0)LT^(0)], respectively. Find the dimensions of A, D and E.

Answer»

`[A]= [M^(0)L^(0)T^(-1)], [D]= [T], [E]= [LT]`
`[A]= [MLT^(0)], [D]= [T^(2)], [E]= [T^(2)]`
`[A]= [M^(0)LT^(-1)], [D]= [MT], [E]= [MT]`
`[A]= [M^(0)LT^(-1)], [D]= [T], [E]= [T]`

Solution :As `A= B+ (C)/(D+E)`
`:. [D]= [E]`
`:. [A]= [B]= [(C)/(D+E)]= [(C)/(D)]= [(C)/(E)] :. [A]= [B]= [M^(0)LT^(-1)]`

`[(C)/(D)]= [A]= [M^(0)LT^(-1) ]`
`[D]= [E]= [(C)/(LT^(-1)] = ( [M^(0)LT^(0) ])/( [M^(0)LT^(-1) ])= [T]`


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