Which of the following experimental set-ups used in the lab will produce linearl

Question

Which of the following experimental set-ups used in the lab will produce linearly polarized electromagnetic wave (more than one answer may be correct)?

A film polarizer placed at any angle in front of initially unpolarized light.

Two film polarizers placed in front of initially unpolarized light with relative angle between the polarizers equal 90 degrees.

Initially unpolarized light scattered along the direction of propagation of the original light.

A film polarizer and then a piece of wax paper placed in front of initially unpolarized light.

Two film polarizers placed in front of initially unpolarized light with relative angle between the polarizers less that 90 degrees.

A piece of wax paper and then a film polarizer placed in front of initially unpolarized light.

Three film polarizers placed in front of initially unpolarized light oriented at any angles.

A wire grid placed parallel to the orientation of initially polarized microwave.

Explanation / Answer

A piece of wax paper and then a film polarizer placed in front of initially unpolarized light.

Two film polarizers placed in front of initially unpolarized light with relative angle between the polarizers less that 90 degrees.

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