21. A two-point source interference pattern is set up using blue light. What changes in the pattern would be observed if red light was used? a. No changes are observed. b. The pattern disappears since red light has a very long wavelength. c. The pattern has more nodal lines. d. The pattern has fewer nodal lines. e. none of the above
21. A two-point source interference pattern is set up using blue light. What changes in the pattern would be observed if red light was used? a. No changes are observed. b. The pattern disappears since red light has a very long wavelength. c. The pattern has more nodal lines. d. The pattern has fewer nodal lines. e. none of the above
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
Transcribed Image Text:21. A two-point source interference pattern is set up using blue light. What changes in the pattern would be
observed if red light was used?
a. No changes are observed.
b. The pattern disappears since red light has a very long wavelength.
c. The pattern has more nodal lines.
d. The pattern has fewer nodal lines.
e. none of the above
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