Polarisation of Light
Polarisation of Light
Light is a transverse electromagnetic wave. Unlike a water wave which can only move up an down, a light wave can vibrate in any direction that is perpendicular (at right angles) to the direction of the wave. This means that the light has been polarised.
Polarising filters can be used to separate light waves according to their direction of vibration. For example, the vertical polariser absorbs most of the incident (unpolarised) beam and only transmits light waves that vibrate vertically. The light that passes through the filter is said to be "vertically polarised".
Polarising sunglasses contain polarising filters which absorb much of the incoming light energy, but allow enough light through for you to still see clearly.
You can test your sunglasses to see if they are polarised by holding another pair of polarised sunglasses in front of them. Rotate your sunglasses . If they are polarised, no light will pass through when the two pairs are perpendicular.
Polarisation can be used to create 3D effects in movies.
The process of transforming unpolarized light into the polarized light is known as __________ | |||
| Right Option : A | |||
| View Explanation | |||
The light that passes through the filter is said to be "_________________". | |||
| Right Option : A | |||
| View Explanation | |||
To separate light waves according to their direction of vibration ________ of the following object is used. | |||
| Right Option : C | |||
| View Explanation | |||
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My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
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