Difficult
Choose the correct statement from the following.
- ANot all basic laws of physics are universal.
- BConservation laws have a deep connection with symmetries of nature.
- CThere are four to six fundamental forces in nature that govern the diverse phenomena of the world.
- DPhysics can generate new technology but new physics cannot come out from technology.
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$A$ scalar quantity is one that
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View SolutionWhich of the following pairs does not have the same dimensions?
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View SolutionIf $R$,$X_L$,and $X_C$ represent resistance,inductive reactance,and capacitive reactance respectively,then which of the following is dimensionless?
Match List-$I$ with List-$II$ and choose the correct answer from the options given below:
List-$I$
List-$II$
$A$. Boltzmann constant
$I$. $[M^{-1}L^3T^{-2}]$
$B$. Stefan's constant
$II$. $[ML^2T^{-1}]$
$C$. Planck's constant
$III$. $[ML^2T^{-2}K^{-1}]$
$D$. Gravitational constant
$IV$. $[ML^0T^{-3}K^{-4}]$
| List-$I$ | List-$II$ |
|---|---|
| $A$. Boltzmann constant | $I$. $[M^{-1}L^3T^{-2}]$ |
| $B$. Stefan's constant | $II$. $[ML^2T^{-1}]$ |
| $C$. Planck's constant | $III$. $[ML^2T^{-2}K^{-1}]$ |
| $D$. Gravitational constant | $IV$. $[ML^0T^{-3}K^{-4}]$ |
Match the following physical quantities in $LIST$-$I$ with their dimensional formulas in $LIST$-$II$:
$LIST$-$I$ $LIST$-$II$ $A$. Planck's constant $I$. $ML^2T^{-2}$ $B$. Stopping potential $II$. $T^{-1}$ $C$. Work function $III$. $ML^2T^{-1}$ $D$. Threshold frequency $IV$. $ML^2T^{-3}A^{-1}$
| $LIST$-$I$ | $LIST$-$II$ |
| $A$. Planck's constant | $I$. $ML^2T^{-2}$ |
| $B$. Stopping potential | $II$. $T^{-1}$ |
| $C$. Work function | $III$. $ML^2T^{-1}$ |
| $D$. Threshold frequency | $IV$. $ML^2T^{-3}A^{-1}$ |
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