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TARGET PUBLICATION-LENSES -Choose the correct alternative
- A convex lens forms a virtual image of an object placed ………… .
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- The image obtained while finding the focal length of a convex lens is ...
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- A lens always produce virtual and diminished image.
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- For a particular glass lens f = - 2 m. Only this much data was provide...
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- A student obtained a clear image of window grills on the screen . But ...
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- The central opening of iris is called as
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- The focal length of a normal eye lens is about
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- A person may suffer from both myopia and hypermetropia defects. (a) W...
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- The optical prescription for a pair of spectacles is, Right eye : + 2....
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- Principal focus of a magnifying glass is
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- At what distance a watch maker must hold his lens from the watch?
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