Jamb Physics 2016 Past Questions and Answers

Question 26:

• JAMB 2016

A radioactive isotope has a decay constant of 10^-6s^-1.
Calculate its half - life?

A. 5.93 x 10⁶s
B. 6.93 x 10⁷s
C. 6.93 x 10⁹s
D. 5.93 x 10⁷s

Question 27:

• JAMB 2016

Which of the following waves is both transverse and mechanical?

A. Water waves
B. Radio waves
C. Sound waves
D. X-rays

Question 28:

• JAMB 2016

Calculate the temperature of 6 moles of an ideal gas at a pressure of 7.6 x 10⁶Nm^-2 with a volume of 10^-3m³.
[R = 8.3jmol^-1K^-1]

A. 201^oC
B. 126^oC
C. 153^oC
D. 185^oC

Question 29:

• JAMB 2016

The relative density of a liquid is the ratio of the

A. Mass of water to the mass of an equal volume of liquid
B. Upthrust in the liquid to the upthrust in water
C. Density of water to the density of the liquid
D. Upthrust in water to the upthrust in the liquid

Question 30:

• JAMB 2016

What will happen to the pressure of a gas if its temperature is reduced to -273^oC?

A. It will decrease
B. It will drop to zero
C. It will increase
D. It will remain constant