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A concave lens of glass, refractive index 1.5 h as both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as a
  • a)
    convergent lens of focal length 3.5 R
  • b)
    convergent lens of focal length 3.0 R
  • c)
    divergent lens of focal length 3.5 R
  • d)
    divergent lens of focal length 3.0 R
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A concave lens of glass, refractive index 1.5 h as both surfaces of sa...
For concave lens as shown in figure in this case
R= – R and R2 = + R
⇒ f = + 3.5 R
NOTE : The positive sign shows that the lens behaves as convergent lens.
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A concave lens of glass, refractive index 1.5 h as both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as aa)convergent lens of focal length 3.5 Rb)convergent lens of focal length 3.0 Rc)divergent lens of focal length 3.5 Rd)divergent lens of focal length 3.0 RCorrect answer is option 'A'. Can you explain this answer?
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A concave lens of glass, refractive index 1.5 h as both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as aa)convergent lens of focal length 3.5 Rb)convergent lens of focal length 3.0 Rc)divergent lens of focal length 3.5 Rd)divergent lens of focal length 3.0 RCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A concave lens of glass, refractive index 1.5 h as both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as aa)convergent lens of focal length 3.5 Rb)convergent lens of focal length 3.0 Rc)divergent lens of focal length 3.5 Rd)divergent lens of focal length 3.0 RCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A concave lens of glass, refractive index 1.5 h as both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as aa)convergent lens of focal length 3.5 Rb)convergent lens of focal length 3.0 Rc)divergent lens of focal length 3.5 Rd)divergent lens of focal length 3.0 RCorrect answer is option 'A'. Can you explain this answer?.
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