What is the effect of rotating a polarizer in front of a beam of polarized light?
Correct Answer: Intensity of light decreases as polarizer is rotated.
- Step 1: Understand that polarized light vibrates in a specific direction.
- Step 2: Know that a polarizer is a filter that only allows light waves vibrating in a certain direction to pass through.
- Step 3: When you place a polarizer in front of polarized light, it can either let the light through or block it, depending on the angle.
- Step 4: As you rotate the polarizer, the angle between the light's vibration direction and the polarizer's direction changes.
- Step 5: According to Malus's law, the intensity of the light that passes through the polarizer decreases as the angle increases.
- Step 6: If the polarizer is aligned with the light's direction, maximum light passes through. If it is perpendicular, no light passes through.
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