Which of the following statements about a bar magnet is correct?
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2006
Determine the magnitude of P in the diagram above
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2006
The diagram above shows the speed-time graph of a car.If the car covered a total distance of 600m in 25s, calculate its maximum speed
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2006
An atom \(^{234}_{91} P\) emits a gamma radiation. The resultant nuclide is
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2006
Fusion is not usually used for generating electric power because
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2006
Which of the following sources of energy is/are exhausible? i. Solar ii. Fossil fuels iii. Tidal power
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2006
The diagram represents a block-and-tackle pulley system on which an effort of 50N is just able to lift a load of weight W. If the efficiency of the machine is 40%. find the value of W
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2006
In the actual exam, a setup will be provided that includes measuring the e.m.f. of an accumulator and connecting a circuit with a constantan wire, a standard resistor, an ammeter, and other apparatus. The experiment invo…
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2006
In the actual exam, a setup will be provided that includes using a rectangular glass prism, optical pins, and a drawing board to explore the principles of refraction of light. The experiment is designed to demonstrate Sn…
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2006
In the actual exam, a setup will be provided that involves clamping a meter rule to a bench and attaching different masses to its free end to observe oscillations. The experiment is designed to explore the principles of…
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2006
(a) State the conditions for the equilibrium of a rigid body acted upon by parallel forces.(b)(i) Describe an experiment to determine the mass of a metre rule using the principle of moments.(ii) State two precautions nec…
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2006
(a) Define(i) proton number;(ii) nucleon number;(iii) isotopes.(b) A nuclide \(^A_ZX\) emits \(\beta\)-particle to form a daughter nuclide Y. Write a nuclear equation to illustrate the charge conservation.(c) The radioac…
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2006
(a)(i) Name and explain the common defects of a primary cell.(ii) State two advantages of a secondary cell over a primary cell.(b) Draw a labelled diagram to show the essential parts of a dry leclanche cell.(c)(i) Explai…
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2006
(a) With the aid of ray diagrams, explain total internal reflection.(b) Describe, with the aid of a labelled diagram, the essential features of an astronomical telescope in normal adjustment.(c) A converging lens forms a…
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2006
(a) State two;(i) laws of solid friction;(ii) advantages of friction;(iii) methods of reducing friction.(b) Draw and label a diagram of a pulley system with velocity ratio of 5.(c)(i) Show that the efficiency L, force ra…
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2006
List three observations in support of the de-Broglie's assumptions that moving particles behave like waves.
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2006
A paralIel beam of unpolarized light is incident on a plane glass of refractive index 1.60 at an angle to the normal. If the reflected beam is completely polarized, calculate the angle of incidence of the beam.
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2006
The uncertinty in determining the duration during which an electron remains in a particular energy level before returning to the ground state is 2.0 x 10\(^{-9}\)s. Calculate the uncertainty in determining its energy at…
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2006
(a) State two applications of electrolysis.(b) Explain what is meant by the electrochemical equivalent of copper is 3.3 x 10\(^{-7}\) kgC\(^{-1}\)
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2006
Explain why water in a narrow glass tube has a concave meniscus while mecury in the same tube, has a convex meniscus