Jamb Physics 1981 Past Questions and Answers

Question 26:

• JAMB 1981

Which type of radiation does not NOT originate within the nucleus?

A. Alpha
B. Beta
C. Gamma
D. Neutron
E. X-rays

Question 27:

• JAMB 1981

The resistance of an open series circuit is

A. Zero
B. Half the normal resistance of the circuit
C. Double the normal resistance of the circuit
D. One
E. Infinite

Question 28:

• JAMB 1981

The lack of power of accommodation which is mainly due to the hardening of the eye lens and is usual with onset of old age is called?

A. Myopia
B. Hypermyopia
C. Presbyopia
D. Astigmatism
E. Eye ring

Question 29:

• JAMB 1981

A body falls freely under gravity (g = 9.8ms^-2) from a height of 40m on to the top of a platform 0.8m above the ground. Its velocity on reaching the platform is

A. 784ms^-1
B. 80ms^-1
C. 78.4ms^-1
D. 39.2ms^-1
E. 27.7ms^-1

Question 30:

• JAMB 1981

Alternating current can induce voltage because it has a

A. Ripple value
B. Varying magnetic field
C. Weaker magnetic field than direct current
D. Stonger magnetic field than direct current
E. High peak value