If a quantum of radiation has an energy of 2.10 keV, what is its wavelength? (h = 6.63 × 10^?34 J?s, 1 eV = 1.60 × 10^?19 J, c = 3.00 × 10^8 m/s, and 1 nm = 10?9 m)
a. 0.95 nm
b. 197 nm
c. 0.59 nm
d. 1.24 nm
e. 0.14 nm
c
You might also like to view...
Consider the complete magnetic cycle of sunspot activity on the Sun. Approximately how many years is this cycle?
a. 100 years b. 11 years c. 7 years d. 40 years e. 22 years
Hadrons are particles that interact via the strong force
a. True b. False Indicate whether the statement is true or false
Which of the following describes what will happen to a light ray incident on an air-to-glass boundary?
a. total transmission b. partial reflection, partial transmission c. partial reflection, total transmission d. total reflection
Heat Engines: A heat engine with an efficiency of 30% performs 2500 J of work. How much heat is discharged to the lower temperature reservoir?
A. 5800 J B. 8300 J C. 750 J D. 1400 J E. 7100 J