Physics Past Questions and Answers

Metal rods of length 20m each are laid end to end to form a bridge at 25oC. What gap will be provided between consecutive rails for the bridge to withstand 75oC?
[Linear expansivity of the material = 2.0 x 10-5K-1

Transverse waves can be distinguished from longitudinal waves using the characteristic of

A man exerts a pressure of 2.8 x 10³Nm^-2 on the ground and has 4 x 10^-2m² of his feet in contact with the ground. The weight of the man is

Calculate the angle of minimum deviation for a ray which is refracted through an equiangular prism of refractive index 1.4

A cell whose internal resistance is 0.5Ω delivers a current of 4A to an external resistor,The loss voltage of the cell is