A body of mass 5kg moving with a velocity of 10ms^-1 collides with a stationary body of mass 6kg. If the two bodies stick together and move in the same direction after their collision, calculate their common velocity

• A. 4.55ms^-1
• B. 12.00ms^-1
• C. 30.00ms^-1
• D. 50.00ms^-1

A missile is launched with a speed of 75 ms^-1 at an angle of 22° above the surface of a warship. Find the horizontal range achieved by the missile. Ignore the effects of air resistance. [Take g = 10 ms^-1]

• A. 195
• B. 271 m
• C. 391 m
• D. 136 m

Which of the following arrangements of the components of electromagnetic spectrum is in ascending order of wavelengths?

• A. Gamma rays, ultraviolet rays, X- rays, infra - red rays
• B. Gamma rays, X-rays, ultraviolet rays, infra-red rays
• C. infra-red rays, ultraviolet rays, X-rays, gamma rays
• D. Gamma rays, ultraviolet rays, infra-red rays, X-rays

\(500cm^{-3}\) of a gas is collected at 0°C and at a pressure of 72cm of mercury. What is the volume of the the gas at the same temperature and at a pressure of 76cm of the same mercury?

• A. \(\frac{76\times500}{72}cm^3\)
• B. \(\frac{72\times500}{76}cm^3\)
• C. \(\frac{72\times76}{500}cm^3\)
• D. \(\frac{76}{72\times500}cm^3\)

A car fuse is marked 15A and operates normally on a 12V battery. Calculate the resistance of the fuse wire

• A. 180Ω
• B. 27Ω
• C. 3Ω
• D. 0.8Ω

Define (i) Elasticity; (ii) Young's modulus; (iii) Force constant.

In the diagram below, the current passing through the 6Ω resistor is 1.5A. Calculate the current in the 30Ω resistor

• A. 1.20A
• B. 0.90A
• C. 0.75A
• D. 0.60A

An example of a mechanical wave is---------

• A. water waves
• B. radio waves
• C. x-rays
• D. light rays

The resultant of two forces acting on an object is maximum if the angle between them is

• A. 45°
• B. 0°
• C. 90°
• D. 180°

The iron core of an induction coil is made from bundles of wire so as to

• A. minimize eddy-currents
• B. generate eddy-current
• C. prevent sparking at the contact breaker
• D. get the greatest posible secondary voltage