(a) Define Young's modulus (b) When a force of 50 N is applied to the free end of an elastic cord, an extension of 4 cm is produced in the cord. Calculate t...

A Spiral spring of natural length 20.00cm has a scale hanging freely in its lower end. When an object ass 40 g is placed in the pan. its length becomes cm. W...

(a) Define diffusion (b) State Graham's law of diffusion

The diagram above illustrates the path ABC, in a vertical x z plane, of a bullet shot into the air at an angle above the horizontal. Copy the diagram, and, u...

In his first attempt, a long jumper took off from the spring board with a speed of 8 ms\(^{-1}\) at 30° to the horizontal. He makes a second attempt with the...

State three methods of polarising an unpolarised light

(a) List two properties of cathode rays (b) Explain how the intensity and energy of cathode rays may be increased

(a) For a water voltameter, identify the; (i) electrolyte; (ii) electrodes; (iii) substances deposited on the electrodes (b)State the ratio of the volume of ...

A parallel beam of unpolarised light is incident on a plane glass surface at an angle of 58\(^{o}\) to the normal. If the reflected beam is completely polari...