GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What will happen if you hold a polarized sunglass in front of you and rotate them. While looking at the blue sky, you will see the sky get ____
|
|
brighter
|
|
|
dimmer
|
|
|
invisible
|
|
|
brighter and dimmer
|
Explanation:
Detailed explanation-1: -If you hold your Polaroid sunglasses in front of you and rotate them while looking at blue sky, you will see the sky get bright and dim. This is a clear indication that light scattered by air is partially polarized.
Detailed explanation-2: -The “rainbow” effect is occurs when light is refracted. Seeing a rainbow through polarized lenses is due to a phenomenon called refraction.
Detailed explanation-3: -When a second piece of polarizer is placed over the tape and rotated, it transmits different colors at different angles. This accounts for the color combinations you see at a given angle, and for the changes in color as the polarizer is rotated (click to enlarge diagram below).
There is 1 question to complete.