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PRADEEP-REFLECTION AND REFRACTION-NCERT QUESTION
- Define the principal focus of a concave mirror.
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- The radius of curvature of a spherical mirror is 20 cm. What is its fo...
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- Name a mirror that can give an erect and enlarged image of an object.
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- In motor vehicles, a convex mirror is attached near the driver's seat ...
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- Find the focal length of a convex mirror of radius of curvature 1 m.
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- A concave mirror produces three times magnified real image of an objec...
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- A ray of light travelling in air enters obliquely into water. Does the...
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- The refraction index of glass is 1.5. Find the speed of light in glass...
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- Find out, from Table 10.3, the medium having highest optical density. ...
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- You are given kerosene, turpentine and water. In which of these does t...
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- The refractive index of diamond is 2.42. What is the meaning of this s...
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- Define one dioptre of power of a lens.
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- A convex lens forms a real and inverted image of a needle at a distanc...
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- Find the power of a concave lens of focal length 2 m.
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