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Why do salons have parallel mirrors?...

Why do salons have parallel mirrors?

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The customer can see the image of back of his head. The setup focusses light and helps the barber to cut the hair in the proper manner.
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PEARSON IIT JEE FOUNDATION-LIGHT-SOLVED EXAMPLE
  1. Give two uses of periscopes.

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  2. Explain the phenomenon of multiple reflection in brief.

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  3. How many images are formed when two plane mirrors are placed parallel...

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  4. Explain why you can see the back of your head at the hairdresser's sho...

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  5. Why do salons have parallel mirrors?

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  6. Why our pupils contract when a doctor shines a torch in our eyes durin...

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  7. Why does pupil always appear black?

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  8. Discuss the function of iris.

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  9. Give two functions of eyelashes.

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  10. What is vitreous fluid?

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  11. Under what condition, an image formed on this part of the retina canno...

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  12. Explain how our eyes can detect both nearby and faraway objects.

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  13. What do you understand by persistence of image?

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  14. Give any one example of electronic aids available for the visually cha...

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  15. How many dot patterns is the Braille system composed of?

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  16. Name the region where the retina meets the optic nerve and does not co...

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  17. Name the pair of muscles that hold the eye lens at its position and ad...

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  18. Name the following: (a) The opaque muscular structure in front of th...

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  19. What happens when a person is suffering from myopia?

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  20. What do you mean by least distance of distinct vision?

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