Selwyn is 16 yr old and wears a spectacl...

Selwyn is 16 yr old and wears a spectacle having a power of `+2` D .Answer the following question? What Will Be the Focal Length of the Lens? What is the Type of the Lens and What Must Be the Defect of Vision?

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CHETANA PUBLICATION-LENSES-Exercise

Answer the question based on the following diagrams: Give two reason...
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Answer the question based on the following diagrams: In which figure...
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Selwyn is 16 yr old and wears a spectacle having a power of +2 D .Answ...
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Vijay is 16 yr old and wears a spectacle having a power of -2 D .Answe...
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Ankit developed an eye defect at the age of 65 yrs and had to wear a l...
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What changes in the position of the candle should be made to obtain a ...
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What is nature of image formed if a concave lens is used instead of a ...
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State any one point of difference between a real and virtual image.
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Label A and B in the diagram.
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Explain the functions of A.
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Name the two lenses A and B
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Farsightedness can be corrected by using lens. A. Convex B. concave ...
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The perception of dim light is concerned with cells. A. rod B. cone ...
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Find the odd word out: Long-sightedness, myopia, short sightedness, ne...
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Object at 2F1: image at 2F2:: object at F1:.
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State whether the following statement are 'True' of False". If false w...
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An object is placed at a distance of 15 cm from a convex lens.If the f...
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Give scientific reasons: We cannot clearly see an object kept at a...
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Distinguish between : Farsightedness and Nearsightedness
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Draw a neat and labelled diagram of human eye.
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