Saved Bookmarks
| 1. |
What is polaroid? Write its uses. |
|
Answer» Polaroid is a device used to produce the plane polarised light. Use of polaroid (i) It is used as glass windows in train and aeroplanes. (ii) lt is used in sun glasses (goggles) to block the glare. (iii) It is used to record and reproduce three dimenional moving pictures. (iv) It is used to elimirate the daggle from the head lights of cars, buses etc. |
|