How does the intensity of a sound wave change if the distance from the
source increases by a factor of 2?
A. The intensity increases by a factor of 4
B. The intensity decreases by a factor of 4.
C. The intensity decreases by a factor of 2
D. The intensity increases by a factor of 2.
Answers: 3
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In a system, when potential energy decreases, then entropy also decreases. true false
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Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
How does the intensity of a sound wave change if the distance from the
source increases by a factor...
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