by Sunday | Nov 11 | Physics JAMB
A. handle is a better conductor of heat than the blade B. handle contains stored energy in form of heat C. blade is a better conductor of heat than the handle D. blade is placed at a lower temperature than the heat Correct Answer: Option C = blade is a better...
by Sunday | Nov 11 | Physics JAMB
I. Mass II. Density III. Temperature IV. Nature of substance A. I and II only B. I, II and IV only C. II, III and IV only D. I, II, III and IV Correct Answer: Option B = I, II and IV only Explanation Rates of diffusion of a substance generally depend on density temp....
by Sunday | Nov 11 | Physics JAMB
I. Increase the melting point of the liquid. II. Increase the boiling point of the liquid. III. Decrease the melting point of the liquid. IV. Decrease the boiling point of the liquid. A. I and II only B. I and III only C. II and III only D. III and IV only Correct...
by Sunday | Nov 11 | Physics JAMB
A. 30° B. 25° C. 15° D. 10° Correct Answer: Option D = 10° Explanation Electricity heat energy supplies by the heater = lvt = 3.5 x 200 x (2 x 60) = 84000J and this heat is supplied to the 2 kg of the water MC ∆ t = 84000 2 x 4200 x ∆ t = 84000 ∴ ∆t = (84000)/8400 =...
by Sunday | Nov 11 | Physics JAMB
I. Use a liquid with a high melting point. II. use a liquid of high volume expansivity. III. use a capillary tube of large diameter. A. I only B. II. only C. I and II only D. II and III only Correct Answer: Option B = II. only Explanation Using the liquid of high...