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OSWAAL PUBLICATION-LIGHT-REFLECTION AND REFRACTION-TOPIC -2 REFRACTION, LENSES, POWER OF LENS (SHORT ANSWER TYPE QUESTIONS I)
- What is meant by power of a lens? What does its sign (+ve or -ve) indi...
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- What is meant by power of a lens? Define its SI unit.
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- State two laws of refraction.
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- State four characteristics of the image formed by plane mirror.
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- Mention the kind of lens that can form: (i) Real, inverted and magni...
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- Brielf describe an activity to find approximate focal length of a conv...
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- What is meant by the power of a lens? Give its SI unit. When two or mo...
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- The refractive indices of glass and water with respect to air are 3/2 ...
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- The absolute refractive indices of glass and water are 4/3 and 3/2 res...
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- A ray of light incident on a rectangular glass slab immersed in any me...
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- A ray of light falls normally on the surface of a transparent glass sl...
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- Light enters from air into glass plate which has refractive indeed 1.5...
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- Draw the ray diagram for the formation of image by a concave lens when...
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- For the same of incidence in media P,Q and R, the angle of refractive ...
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- The refractive index of a dense flint glass is 1.65 and for alcohol it...
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- Define absolute refractive index of a medium. Light enters from air to...
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- A convex lens of focal length 10 cm is palced at a distance of 12 cm f...
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