Question

5 examples of non optical and optical aids each​

Answer 1

Answer:

•Non optical aids:-these often include

(1) tactual aids(using sense of touch) . the visually impaired can learn to read and write by using a special touch system called the Braille . this system make use of raised dots on a paper .

(2) auditory aids ( using sense of hearing ) include audio cassettes, tape recorders, audio CDs, audio books and electronic devices like computer / calculators / closed circuit television. these , with the help of a software programme , can transfer text files into sound.

•Optical aids :-

these include lenses and telescopic aids. while suitable lens combinations are used to rectify visual limitations, the telescopic aids can help to view class demonstrations and the blackboard .

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Answer 2

Answer:

lences optical

..auditory non optical

Explanation:

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