Physics 2013 Jamb Past Questions and Answers

Question 16 :

• JAMB 2013

Calculate the length which corresponds to a temperature of 20^oC if the ice and steam points of an unguarded thermometer are 400 mm apart

A. 20mm
B. 30mm
C. 60mm
D. 80mm

Question 17 :

• JAMB 2013

A wire of length 100.0m at 30^o has linear expansive of 2x10^-5K^-1 Calculate the length of the wire at a temperature of - 10^oC

A. 100.08m
B. 100.04m
C. 99.96m
D. 99.92m

Question 18 :

• JAMB 2013

A gas at a pressure of 10⁵Nm^-2expands from 0.6m^-3 to 1.2m³ at constant temperature, the work done is

A. 7.0 x 10⁶J
B. 6.0 x 10 ⁶J
C. 6.0 x 10 ⁵J
D. 6.0 x 10 ⁴J

Question 19 :

• JAMB 2013

Two liquids X and Y having the same mass are supplied with the same quantity of heat. If the temperature rise in X is twice that of Y, the ratio of specific heat capacity of X to that of Y is

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

Question 20 :

• JAMB 2013

Food cook quicker in salt water than in pure water because of the effect of

A. Dissolved substances on the boiling point
B. Atmospheric pressure on the boiling point
C. Food nutrients on the thermal energy
D. Salts on the thermal conductivity of water