Medium
The speed of light in vacuum is taken as unity. If light takes $6 \text{ min } 40 \text{ s}$ to reach the Earth from the Sun,the distance between the Sun and the Earth in new units is:
- A$3 \times 10^8$
- B$500$
- C$3 \times 10^{10}$
- D$400$
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Similar Questions
If $F_1, F_2$,and $F_3$ are the relative strengths of the gravitational,the weak nuclear,and the electromagnetic forces respectively,then
Match the physical quantities in Column-$I$ with those in Column-$II$ having the same dimensions. The correct matching is:
$A$. Entropy $I$. Angular velocity $B$. Young's modulus of elasticity $II$. Boltzmann constant $C$. Angular momentum $III$. Energy density $D$. Decay constant $IV$. Planck's constant
| $A$. Entropy | $I$. Angular velocity |
| $B$. Young's modulus of elasticity | $II$. Boltzmann constant |
| $C$. Angular momentum | $III$. Energy density |
| $D$. Decay constant | $IV$. Planck's constant |
Which relation is wrong?
Medium
View SolutionMatch the physical quantities given in List-$I$ with their dimensions in List-$II$.
List-$I$ List-$II$ $A$. Gravitational potential $I$. $M^0 L^2 T^{-2} K^{-1}$ $B$. Stefan's constant $II$. $M^0 L^2 T^{-2}$ $C$. Permittivity $III$. $M L^0 T^{-3} K^{-4}$ $D$. Specific heat capacity $IV$. $M^{-1} L^{-3} T^4 I^2$
$(The dimensions of mass, length, time, temperature and current are $M$, $L$, $T$, $K$ and $I$ respectively.)$
| List-$I$ | List-$II$ |
| $A$. Gravitational potential | $I$. $M^0 L^2 T^{-2} K^{-1}$ |
| $B$. Stefan's constant | $II$. $M^0 L^2 T^{-2}$ |
| $C$. Permittivity | $III$. $M L^0 T^{-3} K^{-4}$ |
| $D$. Specific heat capacity | $IV$. $M^{-1} L^{-3} T^4 I^2$ |
$(The dimensions of mass, length, time, temperature and current are $M$, $L$, $T$, $K$ and $I$ respectively.)$
Which of the following pairs does not have similar dimensions?
MediumAIIMS 2001
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