An iron nail sinks in water whereas an iron ship floats. Which of the following statements is correct in this regard?

1. Average density of ship is greater than that of the water

2. Average density of iron nail is greater than that of the water

3. Average density of the ship is less than that of the water

4. Average density of the ship is equal to that of the water

Select the correct answer using the code given below:

Which of the following arrangement of resistors offers minimum effective resistance between points X and Y?

What will happen if a collection of positive and negative charges are passed at a high speed through a magnetic field which is perpendicular to the direction of motion of the charges? (Assume that both kind of charges are NOT going to recombine)

The motion of a particle of mass m is described by the relation, y = ut - 1⁄2 gt2, where u is the initial velocity of the particle. The force acting on the particle is