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In a Michelson interferometer, what happens to the interference pattern if one o
In a Michelson interferometer, what happens to the interference pattern if one of the mirrors is moved away from the beam splitter?
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Practice Questions
1 question
Q1
In a Michelson interferometer, what happens to the interference pattern if one of the mirrors is moved away from the beam splitter?
Fringes move closer
Fringes move apart
Fringes disappear
No change in pattern
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Moving one mirror changes the path length of one beam, causing the fringes to move apart or closer depending on the direction of movement.
Questions & Step-by-step Solutions
1 item
Q
Q: In a Michelson interferometer, what happens to the interference pattern if one of the mirrors is moved away from the beam splitter?
Solution:
Moving one mirror changes the path length of one beam, causing the fringes to move apart or closer depending on the direction of movement.
Steps: 6
Show Steps
Step 1: Understand that a Michelson interferometer splits a light beam into two paths using a beam splitter.
Step 2: Recognize that each path has a mirror at the end that reflects the light back to the beam splitter.
Step 3: Know that when the light beams return to the beam splitter, they combine and create an interference pattern of bright and dark fringes.
Step 4: Realize that moving one of the mirrors changes the distance that one of the light beams travels.
Step 5: Understand that this change in distance affects the phase of the light waves when they recombine.
Step 6: Conclude that as one mirror is moved, the interference pattern (the fringes) will shift closer together or further apart.
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