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[" An optical instrument uses eye-lens o...

[" An optical instrument uses eye-lens of power "16D" and objective lens of power "50D" an "],[" has a tube length of "16.25cm" .Name the optical instrument and calculate its magnifyin "],[" power if it forms the final image at infinity."(V)/(V)timeshat D]

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An optical instrument uses eye-lens of power 16 D and objective lens of power 50D and has a tube length of 16.25 cm. Name the optical instrument and calculate its magnifying power if forms the final image at infinity.

An optical instrument uses eye-lens of power 16 D and objective lens of power 50D and has a tube length of 16.25 cm. Name the optical instrument and calculate its magnifying power if forms the final image at infinity.

An optical instrument uses a lens of power 100 D for objective lens and 50 D for its eyepiece. When the tube length is kept at 25 cm, the final is formed at infinity. Calculate the magnification produced by the instrument.

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An optical instrument uses a 25 D objective and 20 D eyepeice with a tube length of 25 cm when eye is least strained

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A convergent lens of power 8 D is combined with a divergent lens of power - 10 D . Calculate focal length of the combination.