Q23 of 62 Page 106

What is a cataract?

With the aging the transparency and elasticity of the lens gradually decrease. The crystalline lens of people of old age becomes milky and cloudy. Due to this reason, it starts reflection and objects seems cloudy. This condition is called a cataract.
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21

In which condition the person is not able to see the object clearly when he is suffering from myopia?

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Which eye defect can be corrected by using the lens of appropriate power?

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What type of our own image is visible to us in shaving mirror?

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What is regular reflection and diffused reflection?