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A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard.

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asked Jun 10, 2017 in Physics by Kundan kumar (49,132 points) ● 34 ● 384 ● 1028
A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard. What advice will a doctor give to her? Draw ray diagram for the correction of this defect.

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+2 votes
answered Jun 10, 2017 by Vikash Kumar (144,729 points) ● 8 ● 11 ● 21
selected Jun 10, 2017 by Kundan kumar
 
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Hint— The student is suffering from myopia (near sightedness). Doctor advises her to use a concave lens of appropriate power to correct this defect.

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