1991
Which of the following are True for \(\alpha\)-decay. i. mass number, decrease by four. ii. Atomic number decreases by two. iii. mass number does not change.
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1991 JAMB UTME Physics Past Questions
1991
In a nuclear fusion process, four protons each of mass Mp were fused to produce a nucleus X of mass Mx. Which of the following equations is CORRECT?
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1991
4g of a radioactive material of half-life 10 days is spilled on a laboratory floor. How long would it take to disintegrate 3.5g of the material?
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1991
When an atom loses or gains a charge, it becomes
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1991
which of the following statements are TRUE of isotopes? i. isotopes of an element have the same chemical properties because they have the same number of electrons. ii. isotopes of elements are normally separated using ph…
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1991
Which of the following phenomena is called photoelectric effect?
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1991
In the above circuit, The fuse wire melts when
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1991
The net capacitance of the circuit shown above is
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1991
The internal resistance of each of the cells E1 and E2 Shown in the figure above is 2 Ohm. Calculate the total current in the circuit
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1991
A body is under action of a force F such that the force displacement graph of the body is semi circular as shown above. The work done on the body by the force in moving through 24 meters is
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1991
Find the tension T1 in the diagram above if the system is in equilibrium. [G = 10ms-2]
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