PYQ Twenty seven drops of same size are charged at 220 V each. They combine to form a bigger drop. Calculate the potential of the bigger drop. 1. 1520 V 2. 1980 V 3. 660 V 4. 1320 V Ruhul Amin Alig
PYQ In Young's double-slit experiment, if the separation between coherent sources is halved and the distance of the screen from the coherent sources is doubled, then the fringe width becomes: 1. half 2. four times 3. one-fourth 4. double Ruhul Amin Alig
