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Question
Which experiment would be BEST to investigate the effects of wavelength on diffraction patterns?
Responses
A Send pulses down a slinky at a variety of wavelengths and measure the reflected amplitudes.Send pulses down a slinky at a variety of wavelengths and measure the reflected amplitudes.
B Strike tuning forks of various frequencies and observe the beat frequencies that are created.Strike tuning forks of various frequencies and observe the beat frequencies that are created.
C Shine lasers of various colors at a narrow slit in an index card and measure the distance between the bright spots.Shine lasers of various colors at a narrow slit in an index card and measure the distance between the bright spots.
D Emit sound waves from a car moving at a variety of speeds and listen to the pitch of the sound as it moves towards and pas

Answer 1

The best experiment to investigate the effects of wavelength on diffraction patterns is:

C Shine lasers of various colors at a narrow slit in an index card and measure the distance between the bright spots.

This experiment directly involves studying how different wavelengths (different colors of light) affect the diffraction pattern produced when passing through a narrow slit, which is a classic setup for analyzing wave diffraction.