InterviewSolution
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InterviewSolution
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State uses of concave lens. |
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Answer» 1. Concave lenses are used for proper working of medical equipment, scanner, CD player – the instruments that employ laser rays. 2. One or more concave lenses are used in a small safety device, fitted in the peep hole in a door, due to which we can see a large area outside the door. 3. Concave lenses are used in spectacles to correct nearsightedness (myopia). 4. A concave lens is used to spread light emitted by the small bulb in a torch over a wide area. 5. A concave lens is used in front of the eyepiece or inside the eyepiece fitted in a camera, telescope and microscope – the instruments employing convex lenses. |
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