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Class 10
Chapter 11 Class 10 - Human Eye and Colourful World

Assertion (A): Eye lens has the ability to focus  clearly on the retina by adjusting its focal length.  

Reason (R): This phenomenon is known as the power of accommodation.  



Power of accommodation is the ability of the eye lens to focus clearly on the retina by adjusting its focal length.




  • Assertion is True
  • Reason is True
  • And reasoning is the correct explanation for assertion.


So, the correct answer is (a)

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo