UNIBEN General Paper 2006/2007 Past Questions

Which of the following is the best known semi-conductor?

The process of adding impurities to semiconductor is called

In the electric motor, which of the following does not apply?

In the A.C. generator, which of the following does not apply?

Which of the following law is an application of the law of conservation of energy?

The induction coil is a device for generating a

Which of the following pairs of quantities have equivalent units?

The dimension of power is

A body starts from rest and moves with an acceleration of 8m/s² for 10 second, Find the distance during the 8th second

One of the limitations of Bohr's model of the atom is that it does not explain

X-rays were discovered by

Natural radio activity was discovered by

The number of atoms of a radioactive substance is initially 8.0 x 10¹⁶. If the number reduces to 2.0 x 10¹⁶ in 64 minutes. What is the half-life of the substance?

During the electrolysis of copper (II) sulphate solution, an ammeter showed a steady current reading of 1.0A for 1/2 hr and 6.6 x 10⁴ kg of copper were liberated. Calculate the % error in ammeter reading,

n electric lamp has the following markings 230V, 250W, How long would it take the lamp to use one kilo watt-hour when connected to a 230V mains?

Which of the following statements is correct about a semi-conductor at room temperature

Which of the following statements is not correct?

With the Daniel cell the depolarizer is

Which of the following arrangements gives the electromagnetic radiation in their ascending order of wavelength?

Which of the following statements is not correct about the astronomical telescope under normal adjustment

Which of the following colours gives the least separation when white light is dispersed by a triangular glass prism?

An object weighs 100N on the earth's surface. Find its weight at a point P with orbital radius 2R. [g=10NKe].

A gas occupies a volume of 40cm³ at a temperature of 27°C, and a pressure of 80cm Hg. What volume does it occupy at 87°C and pressure of 120cm Hg?

A block and tackle system is used to lift a load of 20N through a vertical height of 10.5m. If the efficiency of the system is 40%, how much work is done against friction

Which of the following statements is correct about a short-sighted girl who does not put on glasses?

Express 0.0000407 in standard form

The sum of three numbers in base two is 11101. If the first two numbers are 1011 and 1101 find the third number

A businessman decided to give 10% discount on all the purchases from his store. How much would a customer pay for a shirt originally marked N540?

Solve the equation 3^x = 1/81

Simplify Log₃27 + 2Log₃9 - Log₃₅₄

Express y in terms of x if $$\frac12 log_2 (y +3)=2x$$

Without using tables, simplify log₉3 + log₉243 + 2log₉3

Given that p(x) = $$2x^2 + 5x^2 - 9x - 18$$, find the value of p(1)

Given that Q (X) = [INSERT EQUATION] and Q(1) =6 and Q(-1) =2, determine the value of a and b

P varies directly with R and inversely with the square of Q. P =12 when R=18 and Q=2. Find the constant, K of the variation

When repaying a loan the number of monthly payment, m. Varies inversely with the amount of each payment N A if the loan can be repaid by 10 monthly payment of N1,350. Find how long it takes to repay the loan with monthly payment of N750

If(x+3) varies directly as y and x = 3 when y= 12 what is the value of x when y=8?

Find the sum of the first twenty linear sequence 5,9,13, 17...

The third term of a geometric progression (G.P) is 63 and the fifth term is 567 find the sum of the first six terms of the progression.

Solve the in equality $$\frac m3 + \frac14 > \frac{3m}8$$

Evaluate the following determinant $$\frac m3 + \frac14 > \frac{3m}8$$

In the diagram AB, CD and EF are parallel lines find the value of n

Point P,Q and R are located in the sale horizontal plane such that Q is 12 km north of P and R is on a bearing of 270 from P. If [PR]= 6km, calculate with respect to one decimal place [QR] [INSERT DIAGRAM]

In the diagram above, find the Value of x

The Angle of depression of a boat at so from the top of a cliff is 82°. What is the angle of elevation of the top of the cliff from the boat?

Given that Sin θ = 5/13, find the value of 2 - Sec²θ/1 + Cotθ

The interior angle of a regular polygon is thrice the exterior angle. How many sides has the polygon.

Differentiate with respect to x the function y= (2x+4) (3x-1)

Find x²y - 5x = 3

Differentiate with respect to x, y= sin (2x-4)