JEE Mains · Physics · STD 11 - 1. units,dimensions and measurement
Match List \(I\) with List \(II\)
| List \(I\) | List \(II\) |
| \((A)\) Young's Modulus \((Y)\) | \((I)\) \(\left[ M L ^{-1} T ^{-1}\right]\) |
| \((B)\) Co-efficient of Viscosity \((\eta)\) | \((II)\) \(\left[ M L ^2 T ^{-1}\right]\) |
| \((C)\) Planck's Constant \((h)\) | \((III)\) \(\left[ M L ^{-1} T ^{-2}\right]\) |
| \((D)\) Work Function \((\phi)\) | \((IV)\) \(\left[ M L ^2 T ^{-2}\right]\) |
- A \((A)-(II), (B)-(III), (C)-(IV), (D)-(I)\)
- B \((A)-(III), (B)-(I), (C)-(II), (D)-(IV)\)
- C \((A)-(I), (B)-(III), (C)-(IV), (D)-(II)\)
- D \((A)-(I), (B)-(II), (C)-(III), (D)-(IV)\)
Answer & Solution
Correct Answer
(B) \((A)-(III), (B)-(I), (C)-(II), (D)-(IV)\)
Step-by-step Solution
Detailed explanation
\(Y =\frac{\text { Stress }}{\text { Strain }}=\frac{ F / A }{\Delta \ell / \ell}=\frac{\left[ MLT ^{-2}\right]}{\left[ L ^2\right]}=\left[ ML ^{-1} T ^{-2}\right]\) \(F =6 \pi \eta rv \Rightarrow \eta=\frac{ F }{6 \pi rv }\)…
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