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What is the unit of refractive index?...

What is the unit of refractive index?

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Refractive index of a medium has no units.
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PRADEEP-REFLECTION AND REFRACTION-Additional Question
  1. (a) Can you measure rough focal length of a convex lens? If yes, why? ...

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  2. (a) The linear magnification of a concave lens is always positive. Why...

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  3. What is the unit of refractive index?

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  4. (i) Rohit claims to have obtained an image twice the size of the objec...

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  5. Arrange air, glass and water in terms of decreasing refractive index.

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  6. Which is denser optically out of alcohol with n=1*36 and carbon disulp...

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  7. The image formed by a convex lens is always real. Is it true?

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  8. a convex lens forms a virtual image of an object. What is the position...

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  9. For what position of an object a real, diminshed image is formed by a ...

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  10. Where should an object be placed in order of to use a convex lens as a...

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  11. What is the difference between lens formula and mirror formula?

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  12. Define one dioptre of power of a lens.

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  13. How is the power of a lens related to its focal length?

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  14. What is meant by number of lens?

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  15. Look at . What is the radius of curvature of the spherical mirror? Giv...

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  16. Draw the reflected ray when ray the incident ray were to pass through ...

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  17. What is the cause of refraction of light ?

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  18. A ray of light is refracted. Which medium a or b is optically denser t...

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  19. A parallel beam of light passes through a lens held at O as shown in F...

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  20. Explain why, a ray of light passing through the centre of curvature of...

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