What happens to the resistance of a wire if its length is doubled? Â
An object of mass ‘m’ be made to fall freely from a height ‘h’. At the start the potential energy is _____ and kinetic energy is ______.
...Which among the following is not a characteristic of transition metals?
A uniform wire is bent into a circle and a battery is connected across a chord that subtends an angle of 60° at the center. What is the ratio of curren...
What is the phenomenon of the bending of light as it passes from one medium to another called? Â
In a convex lens, when the object is at infinity, then the position of image is ______.
Which of the following quantities is a scalar? Â
In an AC circuit, voltage and current are given by V = 200 sin(ωt) and I = 10 sin(ωt + π/3). What is the average power consumed?
Self-inductance of a long solenoid is directly proportional to:
For a non-relativistic particle, the ratio of phase velocity to group velocity of de Broglie waves is:
