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Aniket from Std. X uses spectacles. T...

Aniket from Std. X uses spectacles. The power of the lenses in his spectacles is -0.5 D.
Find the focal length of the lenses used in his spectacles.

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Verified by Experts

Focal length of the lenses used in his spectacles `=(1)/("power of lens")=(1)/(-0.5 D)`
=-2 m (Concave lens `therefore` Minus sign)
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-LENSES-Answer the following questions :
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  7. Surabhi from Std. X uses spectacles. The power of the lenses in her sp...

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  8. Surabhi from Std. X uses spectacles. The power of the lenses in her sp...

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  9. Surabhi from Std. X uses spectacles. The power of the lenses in her sp...

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  10. My grandfather uses a bifocal lens in his spectacles. Explain why.

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  11. State used of a concave lens.

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  12. State used of a convex lens.

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  13. What is meant by the apparent size of an object ? With a neat and labe...

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  14. With a neat labelled diagram, explain the working of a simle microscop...

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  15. What does a simple microscope consist of ? What is the order of magni...

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  16. With a neat labelled diagram, explain the construction and working of ...

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  17. State two uses of a compound microscope .

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  18. What will happen if in a compound microscope , the objective lens is l...

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  19. In which type of microscope do you find the lens arrangement as shown ...

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  20. Write in brief , the working of this microscope.

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