Jamb Physics 2019 Past Questions and Answers

Question 76:

• JAMB 2019

When two objects A and B are supplied with the same quantity of heat, the temperature change in A is obtained to be twice that of B. The mass of P is half that of Q. The ratio of the specific heat capacity of A to B is

A. 1 : 4
B. 4 : 1
C. 1 : 1
D. 2 : 1

Question 77:

• JAMB 2019

The volume of 0.354g of helium at 273°C and 114cm of mercury pressure is 2667cm\(^3\). Calculate the volume

A. 2000.25 cm\(^3\)
B. 200.025 cm\(^3\)
C. 4003.27 cm\(^3\)
D. 2010.25 cm\(^3\)

Question 78:

• JAMB 2019

In the molecular explanation, heat is transferred by the

A. Free electrons
B. Free atoms
C. Free molecules
D. Free solids

Question 79:

• JAMB 2019

Which of these is observed when air is pumped out of a discharge tube without lowering its pressure

A. The conductivity of the air increases
B. The conductivity of the air decreases
C. Conduction does not occur
D. Spark are produced

Question 80:

• JAMB 2019

Which of the following characteristics of a wave is used in the measurement of the depth of the Sea?

A. Diffraction
B. Interference
C. Refraction
D. Reflection