Forbidden transitions and selection rules suggest that
a. a photon has linear momentum.
b. a photon has energy.
c. a photon has angular momentum.
d. a photon has parity.
e. a photon has mass.
C
You might also like to view...
What are the two longest stages in the life of a one solar mass star?
a. Protostar, pre-main sequence. b. Protostar, white dwarf. c. Protostar, main-sequence. d. Main-sequence, white dwarf.
High voltages are desirable for long distance transmission of electric power because
A. the higher the voltage the higher the current, which reduces the power lost B. the higher the voltage, the lower the current, which reduces the power lost C. the higher the voltage the less concern there is for safety
Helium-neon laser light (l = 6.33 × 10^-7 m) is sent through a 0.30 mm-wide single slit. What is the width of the central maximum on a screen 1.0 m from the slit?
a. 2.0 cm b. 4.2 mm c. 1.1 cm d. 2.0 mm e. 0.70 mm
Exclusion Principle: Which of the following values can be taken by the electron spin quantum number, ms?
A. ±1/2 B. 0 C. ±1 D. ±2 E. ±3