Post Utme Physics Past Questions and Answers

Question 181:

Which of these statements is not true?
Thermostats are used to control the temperature of ____________

A. Pressure cookers
B. Laundry irons
C. Hot water storage tanks
D. Aquaria for tropical fish

Question 182:

A given mass of an ideal gas occupies a volume \(V\) at a temperature \(T\) and under a pressure P. If the pressure is increased to \(2 P\) and the temperature reduced to \(1 / 2 T\), then the percentage change in volume of the gas is ____________

A. 25%
B. 75%
C. 300%
D. 1%

Question 183:

The thermometric property of a constant volume of thermometer is ____________

A. Change in pressure
B. Change in length
C. Differential expansion
D. Change in volume

Question 184:

The combination of sound waves with different frequencies is known as ____________

A. Interference
B. Diffraction
C. Superposition
D. Resonance

Question 185:

Which of the following characteristics of a wave is used in the measurement of the depth of the sea?

A. Refraction
B. Reflection
C. Diffraction
D. Interference