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SURA PUBLICATION-OPTICS-ADDITIONAL QUESTIONS & ANSWER (Fill in the blanks (Covers whole unit))
- Hypermeteropia is corrected by lens.
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- Presbyobia is corrected by .
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- What is Astigmatism ? How it is corrected ?
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- According to optical property , telescope is classified into and .
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- According to the things and are major types of telescopes.
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- To view heavenly objects like stars, is used
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- The image in an astronomical telescope is .
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- Terrestrial telescope is used to view objects .
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- The image of terrestrial telescope is .
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- The focal length of objective lens is than the eye pieces in compound...
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- Lenses are classified into types.
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- Convex lens is also called as lens.
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- The band of colours is termed as .
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- Concave lens is also called as lens.
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- lens is thicker at the centre than at the edges.
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- Magnification is denoted by the letter .
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- If one of the focus of a bi-covnex lens is plane, it is known as a .
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- Light travels in the form of .
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- Scattering can be classified into types.
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- Objects which emit their own light are called objects.
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