JEE Mains · Physics · STD 11 - Units,dimensions and measurement
- JEE Mains 2021
- Hard
- MCQ
If \(C\) and \(V\) represent capacity and voltage respectively then what are the dimensions of \(\lambda,\) where \(\frac{ C }{ V }=\lambda ?\)
Pick an option to check your answer.
Answer & Solution
Correct Answer
(D) \(\left[ M ^{-2} L ^{-4} I ^{3} T ^{7}\right]\)
Step-by-step Solution
Detailed explanation
\(\lambda=\frac{ C }{ V }=\frac{ Q / V }{ V }=\frac{ Q }{ V ^{2}}\)
\(V =\frac{\text { work }}{ Q }\)
\(\lambda=\frac{ Q ^{3}}{(\text { work })^{2}}=\frac{( It )^{3}}{( F . s )^{2}}\)
\(=\frac{\left[ I ^{3} T ^{3}\right]}{\left[ ML ^{2} T ^{-2}\right]^{2}}=\left[ M ^{-2} L ^{-4} I ^{3} T ^{7}\right]\)
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