Which of the following is an audio aids ?

(a) O. H. P.
(b) Epidiascope
(c) Gramophone
(d) Magic Lantern

Anurag Mishra Professor Asked on 10th February 2016 in Child Development.
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    Answer:  (b) Epidiascope 

    Anurag Mishra Professor Answered on 11th February 2016.
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