Jamb Physics 1987 Past Questions and Answers

Question 46:

• JAMB 1987

A 50kg block is dropped from a point 10cm above as shown in the fig above. if the force constant of the spring is 4.0 x 10⁴Nm^-1, find the maximum compression of the spring
[g = 10ms^-2]

A. 1.25m
B. 0.50m
C. 0.25m
D. 0.05m

Question 47:

• JAMB 1987

fig above represents the main sequence of energy conversion at kainji dam. what is the efficiency of the system?

A. Q1/Q2
B. E/Q1
C. E/(Q1-Q2)
D. E/(Q1-Q2)

Question 48:

• JAMB 1987

In the above, a voltage V is applied across the terminals P and Q. The voltage across the 1 ohm resistor is

A. V/8
B. V/4
C. V/3
D. V/2