Past Questions And Answers
Two forces 10N and 15N act on an object at an angle of 120° to each other. Find the magnitude of the resultant.
- A. \(5\sqrt{5}N\)
- B. \(5\sqrt{7}N\)
- C. \(7\sqrt{5}N\)
- D. \(7\sqrt{7}N\)
Which of the following practices will lead to losses in electrical power transmission?
- A. using transmission cables of large diameter
- B. transmitting at high voltage and low current
- C. transmitting at relatively low voltage and high current
- D. using a set-up transformer at the production end
The primary aim of pressure groups is to
- A. Attract people's attention
- B. protects the interest of members
- C. captured political power
- D. fight corrupt officials
Use the following information to answer the questions
The transactions of All Girls' Social Club for the year 2021 are as follows:
Bar sales D 30,000; Bar purchases D 17,000 and Rent D 1,200
| 31st December | 2020 | 2021 |
| D | D | |
| Stock at bar | 1400 | 1600 |
| Owing for bar supplies | 6500 | 7300 |
The value of purchases for the year is
- A. D 16,200
- B. D 17,800
- C. D 17,000
- D. D 16,800
Crop rotation is often used in maintaining soil fertility because
- A. all crops grown, add nutrient to the soil
- B. some of the crops fix nitrogen in the soil
- C. crops grown are ploughed into the soil
- D. the crops are rotated on different farmlands
Which of the following fruit is a capsule?
- A. Okra
- B. Apple
- C. Mango
- D. Coconut
which of the following best describes capital as a factor of production?
- A. a natural resources found everywhere
- B. a stock of physical assets used for production
- C. the organization of human and material resources for production
- D. resources used in training labour
Use the extract below to answer questions
Line 1: My heart leaps up when I behold
Line 2: A rainbow in the sky
Line 3: so was it when my life began
Line 4: so is it now
Line 5: so is it when I have grown
Line 6: the child is the father of the man.
The object of the extract is____?
- A. childishness
- B. the unchanging cycle of nature
- C. the adverse effect of old age
- D. human being
How has Nigeria shown that Africa is the centre-piece of her foreign policy?
View Discussion (0)WAEC 1998 THEORY(a)(1) State the energy transformations which take place during the operation of a modern x-ray tube.
(ii) Distinguish between hard and soft x-rays.
(iii) State three uses of x-rays.
(iv) Mention one hazard of over-exposure to x-rays in a radiological laboratory, and indicate any two safety precautions.
(b) A possible fusion reaction is \(^2_1 H + ^2_1 H \to ^3_1H + ^1_1H + Q\)
where Q is the energy released as a result of the reaction. If Q = 4.03 MeV, calculate the atomic mass of \(^3_1H\) in atomic mass units. (\(^2_1 H = 2.01410 U; ^1_1H = 1.00783 U; 1U = 931 MeV\))
View Discussion (0)WAEC 2000 THEORY