If you double the frequency of the light in a laser beam, but keep the number of photons per second in the beam fixed, which of the following statements are correct? (There could be more than one correct choice.)
A) The power in the beam does not change.
B) The energy of individual photons doubles.
C) The energy of individual photons does not change.
D) The intensity of the beam doubles.
E) The wavelength of the individual photons doubles.
B, D
You might also like to view...
When an earthquake occurs, the location on Earth's surface above the point of initial energy release is called the earthquake's
a. fault line. b. focus. c. epicenter. d. none of the above.
The image viewed in a telescope is a magnified virtual image. To achieve this, a telescope must have
A. a negative eyepiece lens with a large focal length. B. a positive eyepiece lens with a small focal length. C. a negative objective lens with a large focal length. D. a positive objective lens with a small focal length.
The force of gravity varies with the
A) product of the two masses. B) inverse of the distance separating the two bodies. C) inverse square of the distance separating the two bodies. D) Both A and B are correct. E) Both A and C are correct.
A diatomic molecule has 2.6 × 10-5 eV of rotational energy in the L = 2 quantum state
What is its rotational energy in the L = 1 quantum state? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s) A) 3.4 × 10-6 eV B) 7.8 × 10-6 eV C) 5.3 × 10-6 eV D) 8.7 × 10-6 eV