Option (C) is correct: \(\sqrt{10}\; m/s\)
A body of mass 1000 kg is moving horizontally with a velocity of 6 m/s. If 200 kg extra mass is added, the final velocity (in m/s) is:
Consider two arrangements of wires. Find the ratio of magnetic field at the centre of the semi–circular part.
Consider the following compounds. Arrange these compounds in a n increasing order of reactivity with nitrating mixture. The correct order is :