25 W
100 W
Both
Neither
Two electric bulbs marked 25W and 220V and 100W and 220V are connected in series to a 440Vsupply. Which of the bulbs will fuse?
Two Flat mirrors are placed at an angle of 60° from each other. How many images will be formed of a Candle placed in between them?
Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)
Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes
Two radioactive sources A and B initially contain equal number of radioactive atoms. Source A has a half life of 1 h and source B 2 h. At the end of 2 h, the ratio of the rate of disintegration of A to that of B will be
Two resistances of 100 ohms and 0 ohm are connected in parallel. The overall resistance will be
Two rods, one of copper and other of steel, experience the same up thrust when placed in water. Thus, both have
Two stones of different masses are dropped simultaneously from the top of a building
Two stones of unequal masses are thrown vertically up with the same velocity. Which among the given will happen
Two wires have their lengths, diameters and resistivities all in the ratio of 1:2. If the resistance of the thiner wire is 10 W, then the resistance of the thicker wire is
