Diffraction Answers

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3

Hilda looks at a CD and sees different colors. Which best explains why she sees different colors when light strikes a CD?

A
Some wavelengths of light are absorbed by the CD.
B
Different wavelengths of light bend at different angles.
C
The smooth surface of a CD causes wavelengths of light to scatter.
D
The rough surface of a CD causes wavelengths of light to bend at the same angle.
4

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.
7

Jaylen draws a diagram to show the behavior of light as it passes through an opening.

Question illustration
A
by drawing the arrows on the right side of the opening so they point outward instead of inward
B
by drawing the arrows on the left side of the diagram so they are parallel to the wave fronts instead of perpendicular
C
by drawing only two arrows on the right side of the opening, with one pointing upward and the other pointing downward
D
by drawing only two arrows on the left side of the diagram, with one parallel to the wave fronts and one perpendicular to the wave fronts
8

"diffraction"

Answer:

105294

9

A light with a second-order dark band forms a diffraction angle of 20.0°. The diffraction grating has 200.0 lines per mm.The wavelength of the light, to the nearest whole number, is nm.

Answer not available
10

Light with a wavelength of about 510 nm is made to pass through a diffraction grating. The angle formed between the path of the incident light and the diffracted light is 12.0° and forms a first-order bright band.The number of lines per mm in the diffraction grating, rounded to the nearest whole number, is lines per mm.

Answer not available

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