Past Questions And Answers
A settlement located at a place on a plain where several roads meet is likely to be nucleated and?
- A. star-shaped
- B. circular
- C. linear
- D. rectangular
From the words lettered A to D below each of the following sentences, choose the word that is nearest in meaning to the underlined word.
The foreman believed that with theaugmented workforce, the construction job would take one more month to complete
- A. skilled
- B. enlarged
- C. hired
- D. determined
A major weakness of one-party system is that it
- A. does not aggregate public opinion
- B. negates the principle of one man one vote
- C. ensures freedom of political choice
- D. encourages dictatorship
The June 12 Presidential Election was annulled by President Ibrahim Babangida on
- A) June 12, 1993
- B) June 14, 1993
- C) June 18, 1993
- D) June 23, 1993
''....I send you to people of Israel, to a nation of rebels...'' The statement above was God's message to
- A. Prophet Ezekiel
- B. Prophet Isaiah
- C. Prophet Jeremiah
- D. Prophets Amos
(i) What and how much will be produced (ii) How will it be produced (iii) For whom will it be produced (iv) How much will be exported and consumed?
From the above, identify the combination of basic resource allocation questions in economic analysis.
- A. i, ii and iii
- B. i, ii and iv
- C. i, iii and iv
- D. ii, iii and iv
A cube made of metal of linear expansivity \(\alpha\) is heated through a temperature \(\theta\). If the initial volume of the cube is Vo, the correct expression for the increase in volume of the cube is
- A. \(\frac{1}{3} \alpha V_o \theta\)
- B. \(\frac{1}{2} \alpha V_o \theta\)
- C. \(2 \alpha V_o \theta\)
- D. \(3 \alpha V_o \theta\)
In a Daniel cell, the depolarizer, positive and negative electrodes are respectively
- A. copper sulphate, copper and zinc
- B. manganese dioxide, carbon and zinc
- C. sulphuric acid, lead oxide and lead
- D. potassium hydroxide, nickel and iron.
The mean age of R men in a club is 50 years, Two men aged 55 and 63, left the club and the mean age reduced by 1 year. Find the value of R
- A. 18
- B. 20
- C. 22
- D. 28
(a) (i) Define atomic spectra.
(ii) Differentiate between emission spectra and absorption spectra.
(b)
The diagram below illustrates an electron transition from energy level n = 3 to n = 1. Calculate the:
(i) energy of the photon
(ii) frequency of the photon
(ii) wavelength of the photon [h = 6.6 x 10\(^{-34}\)J s, c = 3.0 x 10\(^8\) ms\(^{-1}\); 1 ev = 1.6 x 10\(^{-19}\) J]
c)(i)Differentiate between soft x-rays and hard x-rays
(ii) Draw the circuit symbol for a p-n junction diode.
(iiii) Give the reason for doping a semiconductor material
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