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Monday, 20 April 2026
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Physics Past Questions and Answers

Jamb 2004 Physics Questions

Question 41:
The phase difference between waves P and q in the diagram above is
  • A 2Ï€
  • B π
  • C <sup style='font-size: smaller;'>Ï€</sup>/<sub style='font-size: smaller;'>4</sub>
  • D <sup style='font-size: smaller;'>Ï€</sup>/<sub style='font-size: smaller;'>2</sub>
View Answer & Explanation
Question 42:
The change in volume when 450kg of ice is completely melted is
[density of ice = 900 kgm-3, density of water = 100 kgm-3]
  • A 0.50m<sup style='font-size: smaller;'>3</sup>
  • B 0.45m<sup style='font-size: smaller;'>3</sup>
  • C 0.05m<sup style='font-size: smaller;'>3</sup>
  • D 4.50m<sup style='font-size: smaller;'>3</sup>
View Answer & Explanation
Question 43:
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 & Explanation
Question 44:
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 & Explanation
Question 45:
A 50W electric heater is used to heat a metal block of mass 5kg. If in 10 minutes a temperature rise of 12oC is achieved, the specific heat capacity of the metal is
  • A 400 J kg<sup style='font-size: smaller;'>-1</sup>K<sup style='font-size: smaller;'>-1</sup>
  • B 500 J kg<sup style='font-size: smaller;'>-1</sup>K<sup style='font-size: smaller;'>-1</sup>
  • C 390 J kg<sup style='font-size: smaller;'>-1</sup>K<sup style='font-size: smaller;'>-1</sup>
  • D 130 J kg<sup style='font-size: smaller;'>-1</sup>K<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation