CUET Preparation Today
If the time period of a drop of liquid of density d, radius r, vibrating under surface tension s is given by the formula t = (da rb sc)1/2 and if a = 1, c = -1, then b is : |
1 2 3 4 |
3 |
T = (ML-3)a/2 Lb/2 (ML0T-2)c/2 M0L0T = Ma/2+c/2 L-3a/2+b/2 T-c $\frac{-3a}{2}+\frac{b}{2} = 0$ -3a + b = 0 b = 3a b = 3 × 1 b = 3 |
