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A candle flame 2 cm high is palced at di...

A candle flame 2 cm high is palced at distance of 2 metere from a wall. How far from the wall must a concave mirror to placed in order to form an images of the flame 6 cm high on the wall ?

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The correct Answer is:
`4.5m, - 1.125m`
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SL ARORA-RAY OPTICS-Problems For Self Practice
  1. An object is placed at a distance of 15 cm from a convex mirror and im...

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  2. A convex mirror and a concave mirror of radius 10cm each are placed 15...

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  3. A candle flame 2 cm high is palced at distance of 2 metere from a wall...

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  4. A dentist concave mirror has a radius of curvature of 30 cm. How far ...

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  5. Find the position of an object which when placed in front of a concave...

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  6. A concave mirror forms a real image four times as tall as the object p...

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  7. When an object is placed at a distance of 60 cm from a convex spherica...

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  8. A convex mirror produces a magnification of 1//2 when the object is pl...

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  9. An object of 1cm^(2) face area is placed at a distance of 1.5m from a ...

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  10. A rectangular tank 8m deep is full of water. By how much does the bott...

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  11. A travelling microscope is focussed on a mark made on a paper. When a ...

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  12. A printed page is kept pressed by a glass cube (mu = 1.6) of edge 6.0c...

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  13. The velocity of light in glass is 2 xx 10^(8)ms^(-1) while that in vac...

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  14. Calculate the index of refraction of a liquid from the following into ...

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  15. While determining the refractive index of a liquid experimentally, the...

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  16. A vessel contains water up to a height of 20 cm and above it an oil up...

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  17. In Fig. a plane mirror lies at a height h above the bottom of a beaker...

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  18. A cylindrical vessel of diameter 12 cm contains 800picm^(3) of water. ...

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  19. If critical angle for a material to air is 30^(@), the refractive inde...

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  20. An optical fibre (mu = 1.72) is surrounded by a glass coating (mu= 1.5...

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