1991 - JAMB Physics Past Questions and Answers - page 5

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?

In a nuclear fusion process, four protons each of mass M_p were fused to produce a nucleus X of mass M_x. Which of the following equations is CORRECT?

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.

Which of the following phenomena is called photoelectric effect?

Find the tension T1 in the diagram above if the system is in equilibrium

[G = 10ms^-2]

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

Th 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

The net capacitance of the circuit shown above is

In the above circuit, The fuse wire melts when