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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
- The focal length of a convex lens is 30 cm and the size of image is qu...
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- A screen is placed 80 cm from an object. The image of the object on th...
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- Which of the following pairs can produce erect,diminshed and virutual ...
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- In order to obtain a real image of magnification 2 using a convergin l...
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- Which of the following is true for rays coming from infinity?
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- At what angle ,a ray of light will incident on one face of an equilate...
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- The blue colour of the sky is due to the phenomenon of
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- The sky appears blue, because.
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- A red piece of paper when illuminated by green light appears:
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- White light is passed through a dilute solution of potasssium permagna...
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- C.V. Raman received Nobel Prize for the discovery of the following phe...
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- C.V. Raman received Nobel Prize for the discovery of the following phe...
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- The formation of rainbow in due to the phenomenon of
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- If red light and violet light rays are of focal length fr adn fv then ...
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- A parallel beam of white ligth falls on a convex lens .Images of blue...
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- The dispersive powers of the materials of the two lenses are in the r...
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- Retina of eye corresponds to which part of camera?
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- The ability of eye-lens to adjust its focal length is called……. .
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- An astronomical telescope of ten fold angular magnification has a leng...
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- The magnifying power of telescope is high,if
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