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A rotating calcite crystal is placed over an ink dot. On seeing through the crystal one finds:
- a)Two stationary dots
- b)Two dots moving along straight lines
- c)One dot rotating about the other
- d)Both dots rotating about a common axis
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A rotating calcite crystal is placed over an ink dot. On seeing throug...
In calcite crystal there is a phenomenon of double refraction. So, we see one dot as a stationary object whereas the other being refracted at a little displaced position seems to be rotating about the first dot.
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A rotating calcite crystal is placed over an ink dot. On seeing throug...
Explanation:
When a calcite crystal is placed over an ink dot and viewed through it, the light passing through the crystal undergoes double refraction. This means that it is split into two beams, one that travels straight through the crystal (ordinary ray) and another that is bent (extraordinary ray). These two beams then travel at different speeds and directions.
When viewed through the crystal, the ink dot appears to split into two dots. One dot appears to be stationary while the other dot rotates around it. This effect is due to the difference in the velocity of the two beams of light passing through the crystal.
The stationary dot is the image formed by the ordinary ray, which travels straight through the crystal. The rotating dot is the image formed by the extraordinary ray, which is bent as it passes through the crystal.
Therefore, the correct answer is option C - one dot rotating about the other.
When a calcite crystal is placed over an ink dot and viewed through it, the light passing through the crystal undergoes double refraction. This means that it is split into two beams, one that travels straight through the crystal (ordinary ray) and another that is bent (extraordinary ray). These two beams then travel at different speeds and directions.
When viewed through the crystal, the ink dot appears to split into two dots. One dot appears to be stationary while the other dot rotates around it. This effect is due to the difference in the velocity of the two beams of light passing through the crystal.
The stationary dot is the image formed by the ordinary ray, which travels straight through the crystal. The rotating dot is the image formed by the extraordinary ray, which is bent as it passes through the crystal.
Therefore, the correct answer is option C - one dot rotating about the other.
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A rotating calcite crystal is placed over an ink dot. On seeing throug...
Light suffers double refraction through calcite .
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A rotating calcite crystal is placed over an ink dot. On seeing through the crystal one finds:a)Two stationary dotsb)Two dots moving along straight linesc)One dot rotating about the otherd)Both dots rotating about a common axisCorrect answer is option 'C'. Can you explain this answer?
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