Two water waves, call them X and Y, have the same amplitude, but X has a higher frequency than Y. Regarding their wavelengths and their energies,
A) Y has the larger wavelength and the two waves carry the same energy.
B) X has the larger wavelength and carries the greater energy.
C) Y has the larger wavelength and carries the greater energy.
D) Y has the larger wavelength and X carries the greater energy.
E) X has the larger wavelength and Y carries the greater energy.
D
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A tank holds a 1.44-m thick layer of oil that floats on a 0.96-m thick layer of brine. Both liquids are clear and do not intermix
Point O is at the bottom of the tank, on a vertical axis. The indices of refraction of the oil and the brine are 1.40 and 1.52, respectively. A ray originating at O crosses the brine-oil interface at a point 0.60 m from the axis. The ray continues and emerges into the air above the oil. What is the angle that the ray in the air makes with the vertical? A) 54° B) 51° C) 60° D) 48° E) 57°
The diagram illustrates a light source, a gas cloud, and three different lines of sight. Along which line of sight would an observer see an absorption spectrum?
a. 1
b. 2
c. 3
d. 2 and 3
e. none of them
Mass on a Spring: An object that hangs from the ceiling of a stationary elevator by an ideal spring oscillates with a period T. If the elevator accelerates upward with acceleration 2g, what will be the period of oscillation of the object?
A. 4T B. 2T C. T D. T/2 E. T/4
Alcohols are distinguished by the fact that at least one hydrogen atom in a hydrocarbon has been replaced by a(n)
a. carboxyl group. b. alkyl group. c. hydroxyl group. d. oxygen atom.