Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10th
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Power of a lens is – 4D, then its focal length is - Science

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MCQ

Power of a lens is – 4D, then its focal length is

Options

  • 4m

  • –40m

  • –0.25 m

  • –2.5 m

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Solution

– 0.25 m

Concept: Power of a Lens
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