Assertion (A): | Specific gravity of a fluid is a dimensionless quantity. |
Reason (R): | It is the ratio of the density of the fluid to the density of water. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Three liquids of densities \(d,\) \(2d\) and \(3d\) are mixed in equal proportions of weights. The relative density of the mixture is:
1. | \(11d \over 7\) | 2. | \(18d \over 11\) |
3. | \(13d \over 9\) | 4. | \(23d \over 18\) |