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MBD -HARYANA BOARD-LIGHT:REFLECTION AND REFRACTION-EXAMPLE
- What is refraction of light ? Give example.
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- Define refractive index.
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- What is a lens ?
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- Define one dioptre.
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- What is the nature of the mirror having focal length - 15 cm?
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- A mirror has magnification 0.4, What type of the mirror is and what ty...
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- A ray strikes the mirror normally, what is the angle of incidence?
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- The power of a lens is +2.0D. Its focal length should be:
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- Nature of image of a real object formed by convex mirror is always
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- The mirrors used as rear-view mirrors in vehicles are
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- sin i / sin r relation was given by …………
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- The focal length of a lens is expressed by which of the following:
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- The relation between the radius of curvature ® and focal length (f) of...
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- The unit of power of a lens is
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- Power of a lens is -5d, its focal length is:
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- Shaving mirrors are
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- Twinkling of stars is due to atmospheric
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- The defect of vision which cannot be corrected by using spectacles is ...
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- Which one of the following materials cannot be used to make a lens ?
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- Where should an object be placed in front of a convex lens to get a re...
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