Diffraction Answers
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Which is a tool used by scientists to determine the composition of objects?
A
a hologramB
a spectrometerC
a wave frontD
a prism1
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What is the approximate wavelength of a light whose first-order bright band forms a diffraction angle of 45.0° when it passes through a diffraction grating that has 500.0 lines per mm?
A
236 nmB
353 nmC
943 nmD
1414 nm2
Which is the destructive interference formula for diffraction grating problems?
A
dsin =
B
dcos =C
dcos = nD
dsin = n
3
What is the approximate wavelength of a light whose second-order dark band forms a diffraction angle of 15.0° when it passes through a diffraction grating that has 250.0 lines per mm?
A
26 nmB
32 nmC
414 nmD
518 nm4
Which best describes what happens to sunlight after it passes through the keyhole of a door?
A
It converges into one particular shadow region.B
It spreads out into multiple shadow regions.C
It bends back toward the door.D
It scatters back toward the door.6
What causes diffraction that results in a fuzzy glow around a full moon?
A
Moonlight converges into a single area around the moon called a shadow region.B
Moonlight bends toward a single area around the moon called a shadow region.C
Light from the Sun reflecting off the moon bends around particles in Earth’s atmosphere and then spreads out.D
Light from the Sun reflecting off the moon then reflects off particles in Earth’s atmosphere and scatters.Did you find these answers helpful?
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