10a. (1% points) which sound wave has the shortest wavelength in air at standard

Question

10a. (1% points) which sound wave has the shortest wavelength in air at standard temperature and pressure? A sound wave of frequency 100 Hz, or a sound wave of 1000Hz. 100 Hzf1000 Hz They have the same wavelength O There is not enough information to know D f 10b. (1% points) which wave has the shortest wavelength in air at standard temperature and pressure? A light wave of frequency 1000Hz or a sound wave of frequency 1000Hz? O a light wave with frequency of 1000 Hz n they have equal wavelengths d There is not enough information to know. D a sound wave with a frequency of 1000 Hz d light waves don't have wavelengths 11 . (2% points) Which of the following increases when a sound becomes louder? a Frequency Amplitude d Velocity Wavelength Period D None of the above 12. (2% points) In a double-slit interference experiment, which of the following actions (perhaps more than one) would cause the fringe spacing to decrease? Decreasing the wavelength of light Decreasing the distance to the viewing screen Decreasing the slit spacing Submerging the entire experiment in water

Explanation / Answer

10 a) The wavelength is inversely proportional to frequency. Hence the wavelength is shortest for

1000 Hz

10 b) Wavelength is proportional to velocity of wave. Since light has higher velocity the shortest wavelength would be for

a sound wave with a frequency 1000 Hz

11) When sound becomes louder

Amplitude increases

12) To following would decrease fringe spacing in a double slit experiment:

Decreasing the wavelength of light

Decreasing the distance to the viewing screen

Submerging the entire experiment in water

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