Suppose that we double the electrical power flowing into the filament of an incandescent bulb. By what factor will the most probable photon energy ? p increase?
A. 2 1/4
B. 21/3
C. 21/2
D. 2
E. 4
F. 8
T. 16
A. 2 1/4
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Which of the following describes what will happen to a light ray incident on an air-to-glass boundary?
a. total reflection b. total transmission c. partial reflection, partial transmission d. partial reflection, total transmission
A 4-mol ideal gas system undergoes an adiabatic process where it expands and does 28 J of work on its environment. How much heat is received by the system?
a. -20 J c. +28 J b. zero d. +7 J
A mass of 0.40 kg, hanging from a spring with a spring constant of 160 N/m, is set into an up-and-down simple harmonic motion. What is the speed of the mass when moving through the equilibrium point? The starting displacement from equilibrium is 0.10 m
a. zero c. 2.0 m/s b. 1.4 m/s d. 3.4 m/s
What is Darcy’s law?
What will be an ideal response?