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SL ARORA-RAY OPTICS-TYPE I
- The number of images formed by two plane mirrors inclined at 60^@ of a...
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- If a spherical lens has a power of, -0.25 D, the focal length of this ...
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- The radius curvature of each surface of a convex lens of refractive in...
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- Convex lens is made of glass of refractive index 1.5 If the radius of ...
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- Two thin lenses of focal length +10 cm -5 cm are kept in contact. What...
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- A convex lens of focal length 30 cm and a concave lens of focal length...
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- Two lenses of powers -1.5 D and +2.75D are kept in contact. Find the f...
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- A real image of an object is formed at a distance of 20 cm from a lens...
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- Derive the relation : (1)/(F) =(1)/(f(1)) +(1)/(f(2)),where f(1) and f...
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- A small object is placed at a distance of 15 cm from two coaxial thin ...
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- An object is placed at 20 cm left of the convex lens of focal length 1...
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- Fig. shows an equiconvex lens (of refractive index 1.5) in contact wit...
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- Two thin lenses of focal lengths 15 cm and 30 cm resepectively are kep...
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