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MBD -HARYANA BOARD-LIGHT:REFLECTION AND REFRACTION-EXAMPLE
- 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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- Why is a convex mirror used as a rear-view mirror in vehiciles? Eaxpla...
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- Find the focal length of a concave mirror whose radius of carvature is...
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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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- What will be the speed of light in water if it is given that the refra...
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- Find out, from Table 10.3, the medium having highest optical density. ...
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- Refractive indices of kerosene,turpentine and water are 1.44, 1,47 and...
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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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- What is the unit of power of a lens ? Define it .
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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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- Which one of the following materials cannot be used to make a lens ?
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- The image formed by a concave mirror is observed to be virtual, erect ...
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- Where should an object be placed in front of a convex lens to get a re...
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- A spherical mirror and a thin spherical lens have each a focal length ...
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- No matter how far you stand from a mirror, your image appears erect. T...
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- Which of the following lenses would you prefer to use while reading sm...
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