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(i) A text is sometimes deliberately displayed in its mirror image. Can you site one such example? Why is this done?

(ii) What do you mean by rectilinear propagation of light?

Asked by Topperlearning User 8th August 2013, 2:41 AM
Answered by Expert
Answer:
(i) Emergency vehicles such as ambulances or fire engines use mirror images of the text written on them so that the driver of the vehicle infront of them reads it correctly in his rear-view mirror and hence gives way to the ambulance or fire engine.

(ii) The property of light travelling in straight lines in a medium is called rectilinear propagation of light.
Answered by Expert 8th August 2013, 4:41 AM
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