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A travelling telescope is focussed at …

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A travelling telescope is focussed at the bottom of tank over a coin. Now tank is filled up-to a height of 25 cm with a liquid of refractive index 1.6 By what distance would the telescope be moved to focus on the coin again??

Posted by Priya Prakash 5 years, 7 months ago

Entrance Exam > NEET-UG > Physics

2 answers

Utkarsha Nayak 5 years, 7 months ago

We know that , d = t * (1-(1/u)) = 25 * (1 -(1/1.6)) = 25 * 3÷8 = 9.375cm

1Thank You

Utkarsha Nayak 5 years, 7 months ago

9.375 cm

1Thank You

ANSWER

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