UNIBEN General Paper 2009/2010 Past Questions

Which of the following waves is both mechanical and transverse?

Land and sea breezes may be explained in terms of differential in

PQ is a uniform metre rule pivoted at 350cm mark. A mass of 50g is then hung at the 150cm mark such that the rule balances horizontally, calculate the mass of the metre rule.

Which one of the following colour is most likely to produce a photo-electron with the highest kinetic energy.

Which of the following radiations arrangement are in their ascending order of frequency?

If a broadcasting station sends outwaves of wave length 400m, on what frequency is the station operating? (Velocity of wave=3.0x10⁸ms^-1).

The gravitational force on a mass of 1kg at the earth's surface is 10N. Calculate the gravitational force on a satellite of mass 100kg in a circular orbit of radius 2R from the centre of the earth. [R = radius of the earth]

Which of the following experiments confirms the existence of quantized energy levels in an atom?

The balanced lengths unknown emf E and Daniel cell of emf, 1.08v are 80.0cm and 48.0cm respectively circuit on a potentiometer circuit. Calculate the unknown emf E

The emission of electrons due to the application of heat is known as

Doping a semi-conductor with an impurity

Which of the following serves as a moderator in a nuclear reactor?

Which of the following statements is are true of liquids and gases? I. Both are fluids II Their particles are in constant motion III. Both are compressible IV. Boyle's law is applicable to both

Ethanoic acid is found in

Graphite occurs naturally as

Carbon(II)oxide is poisonous to many animals because

The purest form of silica is

Plaster of Paris (P.O.P) used for making casts in hospitals is

Which of the following compounds of tin is a strong reducing agent?

Which of the following will not form complexes with zinc?

Methane and paraffin wax are very similar in many ways. The main reason why they differ chemically is that

A body A moves north wards with a velocity of 5kms^-1, and another body B moves in a direction N60°E with a velocity of 4kms^-1. Calculate the magnitude of the velocity of A relative to B.

A metal sphere falling freely in a long measuring cylinder containing a liquid is under the influence of:

A body is projected with initial velocity of 60ms^-1 through an inclination of 30° to the horizontal, calculate the magnitude of the resultant velocity after 2 seconds [g=10ms^-2]

A binary operation * Is defined on R, the set of real numbers by x * y = √xy for all x, y ΣR. If x * (2* 8) = 6 find x

Find the remainder when the polynomial f(x)= 2x² - 5x - 5 is divided by 2x+1

The common ratio of the exponential sequence (G.P) log x, logx², log x⁴, ..... is

Solve the equation log₂ (x - 1) + log₂ (x +2) = 2

Express 2 Cos (60 + θ)° in terms of Cos θ and Sin θ

The minimum point on the curve y = x² - 6x + 5 is at

Which of the values of the variables x, (i) x=0, (ii) x = -3 (iii) x=9, Satisfy the inequalities 0 < x + 3 < 2/x-1

Three numbers x, y and z are connected by the relationship y = 4x/9 + 1 and z = 4y/9 + 1. If x=99, find z

Find the missing numerator $$\frac5{x + 1} - \frac3{1 - x} + \frac{7x + 1}{x^2 - 1} = \frac {?}{x + 1}$$

Solve for x and y $$\begin{pmatrix}1 & 1 \\3 & 1\end{pmatrix}\begin{pmatrix}x & 1 \end{pmatrix} = \begin{pmatrix}4 & 1 \end{pmatrix}$$

Evaluate ∫¹_-1 (2x + 1)²dx

Solve the following inequality (x - 3)(x-4) ≤ 0

What is the total surface area of a closed cylinder of height 10cm and diameter 7cm? (Take π =22/7)

Calculate, correct to one decimal place. the standard deviation of the numbers -1, 5, 0, 2 and 9.

The probability of an event P is 3/4 while that of another event Q is 1/6, if the probability of both P and Q is 1/12. What is the probability of either P or Q?

How many moles of oxygen are produced when 20 moles of water is decomposed?