The photoelectric effect occurs when electrons are emitted when light strikes the surface of a metal
a. True
b. False
Indicate whether the statement is true or false
True
You might also like to view...
What was the temperature of the Universe when the recombination took place that produced the cosmic background radiation we observe today?
a. about 2.7 K b. about 300 K c. about 3000 K d. about 3 million K e. about 3 billion K
Fluid Flow: An ideal incompressible fluid flows at 0.252 m/s through a 44-mm diameter cylindrical pipe. The pipe widens to a square cross sectional area that is 5.5 cm on a side. Assume steady flow throughout the system.(a) What is the speed of the fluid through the square section of pipe?(b) What is the flow rate in liters per minute?
What will be an ideal response?
The internal energy of n moles of an ideal gas depends on
a. one state variable T. b. two state variables T and V. c. two state variables T and P. d. three state variables T, P and V. e. four variables R, T, P and V.
The disk of the Milky Way is approximately 20,000 ly in diameter
a. True b. False Indicate whether the statement is true or false