Jamb Physics 2011 Past Questions and Answers

Question 21:

• JAMB 2011

A block of aluminum is heated electrically by a 30 w heater if the temperature rises by 10°c in 5 minutes, the heat capacity of the aluminum is

A. 900 JK^-1
B. 90 JK^-1
C. 100 JK^-1
D. 200 JK^-1

Question 22:

• JAMB 2011

Steam burn is more severe than that of boiling water because

A. Steam burn is independent of relative humidity
B. Stem possesses greater heat energy per unit mass
C. Water boils at a higher temperature
D. Steam burn is dependent on relative humidity

Question 23:

• JAMB 2011

I. change of state
II. Diffusion
III. Radiation
IV. Osmosis
which of the processes above can be explained using the kinetic theory?

A. I, II,III and IV
B. I, II and III
C. I, III and IV
D. I, II and IV

Question 24:

• JAMB 2011

Three similar cells each of e.m.f 2 v and internal resistance 2Ω are connected in parallel, the total e.m.f and total internal resistance are respectively

A. 6 v, 6.0Ω
B. 2 v, 0.7Ω
C. 2 v, 6.0Ω
D. 6 v, 0.7Ω

Question 25:

• JAMB 2011

When the human eye loses its power of accomodation, the defect is known as

A. Short sightedness
B. Presbyobia
C. Astigmatism
D. Long sightedness