1. | zero | 2. | \(\dfrac{-q^2}{4\pi\varepsilon_0d}\) |
3. | \(\dfrac{-q^2}{4\pi\varepsilon_0d}\Big(3-\dfrac{1}{\sqrt2}\Big)\) | 4. | \(\dfrac{-q^2}{4\pi\varepsilon_0d}\Big(6-\dfrac{1}{\sqrt2}\Big)\) |
1. | \(420\) Hz | 2. | \(440\) Hz |
3. | \(484\) Hz | 4. | \(512\) Hz |
1. | 2. | ||
3. | 4. |
1. | all vessels contain unequal number of respective molecules. |
2. | the root mean square speed of molecules is same in all the three cases. |
3. | the root mean square speed of helium is the largest. |
4. | the root mean square speed of sulfur hexafluoride is the largest. |
1. | \(+\frac K2\) | 2. | \(-\frac{K}{2}\) |
3. | \(-\frac{K}{4}\) | 4. | \(+\frac K4\) |
1. | \(2\times10^{-4}~\text{Nm}^{-1}\) and is attractive |
2. | \(2\times10^{-4}~\text{Nm}^{-1}\) and is repulsive |
3. | \(1\times10^{-4}~\text{Nm}^{-1}\) and is attractive |
4. | \(1\times10^{-4}~\text{Nm}^{-1}\) and is repulsive |
1. | \(\dfrac{4V_0R}{3R_0+16R}\) | 2. | \(\dfrac{4V_0R}{3R_0+R}\) |
3. | \(\dfrac{2V_0R}{4R_0+R}\) | 4. | \(\dfrac{2V_0R}{2R_0+3R}\) |