Question

a student can not see clearly a chart hanging on a wall placed at distance of 3m from his eye name the defect of vision he is suffering from. drow a ray diagram to insulate this defect . list its two possible causes​

Answer 1

Explanation:

Since the student is not able to see the objects which are at a distance of 3m, means that the student is suffering from Myopia. It can be corrected by using the concave lens of suitable power. The ray diagram to illustrate the defect and the correction diagram are as follows:

Answer 2

THIS CAN ONLY BE OCCURRED IN FOLLOWING CASES::

• EITHER STUDENT IA SUFFERING FROM MYOPIA
• OR MAY BE THE WALL OF CORNEA IS DAMAGE OR LACK OF WATER FLUID IN EYES

CORRECTION::

• BY USING CONCAVE LENSES OF CORRECTION POWER
• OR BY USING EYE SERGERY

RAY DIAGRAM IS IN ATTACHMENT