Question 4766:

A thermometer has it stem marked in millimeter instead of degree Celsius. If the lower fixed point is 5mm and the upper fixed point is 85mm.
what the temperature, in Celsius when the thermometer reads 25mm?

A. 30^oC
B. 25^oC
C. 32.5^oC
D. 720^oC

Question 4767:

How much heat is required to change 2kg of ice at 00C to water at the same temperature specific latent heat of fusion of ice = 33600jkg^-1

A. 6.72x105J
B. 10.08x 105J
C. 22.42 x105
D. 1.68 x105J

Question 4768:

Which of the following is a good absorber of heart ____________

A. White glass
B. Black cloth
C. White roofing sheet
D. Silver coated cup

Question 4769:

The distance between two successive create called ____________

A. Amplitude
B. Node
C. Wavelength
D. Phases difference

Question 4770:

The velocity of sound in a medium 320m/s. if the sound is propagated with a frequency 80Hz, what is its wave length?

A. 50m
B. 6.0m
C. 10.0m
D. 40m