Physics 2004 JAMB Past Questions

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The change in volume when 450kg of ice is completely melted is
[density of ice = 900 kgm-3, density of water = 1000 kgm-3]

A. 0.50m³
B. 0.45m³
C. 0.05m³
D. 4.50m³

View Answer & Discuss (10) JAMB 2004

Tea pots are often silver-coated to prevent heat loss by

A. conduction only
B. convention only
C. convection and conduction
D. radiation only

View Answer & Discuss JAMB 2004

I. Wavelength
II. Medium of propagation
III. Wave velocity
IV. Frequency
V. Energy
Which of the above are used for characterizing waves?

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

View Answer & Discuss (3) JAMB 2004

A 50W electric heater is used to heat a metal block of mass 5kg. If in 10 minutes a temperature rise of 12^oC is achieved, the specific heat capacity of the metal is

A. 400 J kg^-1K^-1
B. 500 J kg^-1K^-1
C. 390 J kg^-1K^-1
D. 130 J kg^-1K^-1

View Answer & Discuss (3) JAMB 2004

Metal rods of length 20m each are laid end to end to form a bridge at 25oC. What gap will be provided between consecutive rails for the bridge to withstand 75oC?
[Linear expansivity of the material = 2.0 x 10-5K-1

A. 0.20m
B. 0.22m
C. 0.25m
D. 0.02m

View Answer & Discuss (4) JAMB 2004

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