A vertical tube one meter long is open at the top. It is filled with 75 cm of water. If the velocity of sound is 344 m/s, what will the fundamental resonant frequency be (in Hz)?
a. 3.4
b. 172
c. 344
d. 1.7
e. 688
c
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A system consists of two photons moving in opposite directions. One photon has energy E and the other has energy 4E. The total system’s mass M is
A. Zero, of course. B. 3E. C. 4E. D. 5E. E. Something else (specify).
When adding several quantities, the number of decimal places in the result must always be
A) larger than the number of decimal places in the most accurate of the quantities. B) equal to the number of decimal places in the most accurate of the quantities. C) equal to the average number of significant digits in the most and least accurate of the quantities. D) equal to the number of decimal places in the least accurate of the quantities. E) smaller than the number of decimal places in the least accurate of the quantities.
A series LC circuit contains a 100-mH inductor, a 36.0-mF capacitor and a 12-V battery. The angular frequency of the electromagnetic oscillations in the circuit is
a. 36.0 × 10^?4 rad/s. b. 6.00 × 10^?2 rad/s. c. 2.78 rad/s. d. 16.7 rad/s. e. 277 rad/s.
A ray of white light, incident upon a glass prism, is dispersed into its various color components. Which one of the following colors experiences the least angle of deviation?
a. orange c. green b. violet d. red