document.write( "Question 470100: Of the following, the highest index of refraction is found in\r
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document.write( " air.
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document.write( " diamond.
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document.write( " glass.
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document.write( " water. \r
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document.write( " Which of the following equations is incorrect?
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document.write( " f = v/λ
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document.write( " v = fλ
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document.write( " v = f/λ
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document.write( " T = 1/f \r
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document.write( " A spacecraft is leaving the earth. Relative to the radio signals it sends out, the signals received on the earth have
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document.write( "
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document.write( " a higher frequency.
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document.write( " a shorter period.
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document.write( " a lower speed.
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document.write( " a longer wavelength. \r
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document.write( " Thin films of oil and soapy water owe their brilliant colors to a combination of...
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document.write( "
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document.write( " reflection, diffraction, and interference.
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document.write( " reflection, refraction, and interference.
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document.write( " refraction, diffraction, and interference.
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document.write( " reflection, refraction, diffraction, and interference.
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document.write( " Light of which of the following colors has the shortest wavelength?
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document.write( " yellow
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document.write( " red
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document.write( " green
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document.write( " blue \r
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document.write( "Waves in a lake are observed to be 5 m in length and to pass an anchored boat 1.25 s apart. The speed of the waves is…
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document.write( " 0.25 m/s.
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document.write( " impossible to find from the information given.
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document.write( " 6.25 m/s.
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document.write( " 4 m/s. \r
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document.write( "The musical note A has a frequency of 440 Hz and its wavelength in seawater is 3.5 m. The speed of sound in seawater is\r
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document.write( " 80 m/s.
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document.write( " 1540 m/s.
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document.write( " 126 m/s.
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document.write( " 343 m/s. \r
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document.write( "Two people talking to one another produce a 50-dB sound. How many people talking would be needed to produce a 60-dB sound, assuming all the people talked in identical fashion?\r
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document.write( " 12
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document.write( " 3
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document.write( " 10
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document.write( " 20 \r
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document.write( "One kHz (kilohertz) is equal to 103 Hz. What is the wavelength of the electromagnetic waves sent out by a radio station whose frequency is 660 kHz? The speed of light is 3 x 108 m/s.
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document.write( " 2.2 x 10-3 m.
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document.write( " 4.55 x 102 m.
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document.write( " 4.60 x 103 m.
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document.write( " 1.98 x 1014 m. \r
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document.write( "A medal in a plastic cube appears to be 12 mm below the top of the cube. If n=1.5 for the plastic, the depth of the medal is actually
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document.write( " 18 mm.
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document.write( " 6 mm.
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document.write( " 24 mm.
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document.write( " 8 mm.
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document.write( "
Algebra.Com's Answer #322471 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Few if any of these are math problems. \n" ); document.write( "Most, maybe all, can be looked up on google. \n" ); document.write( "Why are you asking these anyway? \n" ); document.write( " |