The wavelengths corresponding to the harmonics of an organ pipe that is open at one end and closed at the other can be found by saying that the length of the pipe must be equal to
A)
an odd number of quarter-wavelengths.
B)
an odd number of third-wavelengths.
C)
an odd number of half-wavelengths.
D)
an integer number of half-wavelengths.
E)
an integer number of wavelengths.
A
You might also like to view...
Spherical Mirrors: The focal length of a convex mirror is has a magnitude of 20 cm. What is its radius of curvature?
A. -10 cm B. 40 cm C. -40 cm D. -20 cm E. 20 cm
A pair of equal-length vectors at right angles to each other have a resultant. If the angle between the vectors is greater than 90°, their resultant is
A) less. B) the same. C) greater.
What is the defining property of the Trojan asteroids?
A) Their orbital periods are exactly one year, like ours. B) They have orbits that cross the orbit of the Earth, but not that of Venus. C) They have orbits at the distance of Jupiter and 60 degrees ahead of or behind it. D) They have orbits between Saturn and Uranus. E) Like Pluto, they are in a 3:2 resonance with Neptune.
An air-filled parallel-plate capacitor is constructed with a plate area of 0.40 m2 and a plate separation of 0.10 mm. It is then charged to a potential difference of 12 V?
(?0 = 8.85 × 10-12 C2/N ? m2 ) (a) How much charge is stored on each of its plates? (b) How much energy is stored in it?