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The blue colour of the sky is due to...

The blue colour of the sky is due to

A

Scattering

B

Dispersion

C

Reflection

D

Refraction

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The correct Answer is:
A
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AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-ASSIGNMENT (SECTION - C)
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  2. The focal lengths of a converging lens measured for violet, green and ...

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  3. A luminous object is placed at a distance of 30 cm. from the convex le...

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  4. A plano convex lens is made of material of refactive index 1.6 The rad...

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  5. For a plane convex lens (mu = 1.5) has radius of curvature 10 cm. It i...

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  6. A bubble in glass slab (mu = 1.5) when viewed from one side appears at...

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  7. A body is locatyed on a wall. Its image of equal size is to be obtaine...

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  8. A convex lens is dipped in a liquid whose refractive index is equal t...

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  9. An equiconvex lens in cut into two halves along (i) XOX' f,f',f'' be t...

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  10. Which of the following is incorrect?

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  11. A double concave thin lens made out of glass (mu=1.5) have radii of cu...

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  12. A convex lens forms a real image 16 mm long on a screen. If the lens i...

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  13. A point object is moving with speed u(0) at a position somewhere betwe...

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  14. The minimum magnifying power of an astronomial telescope is M. If the ...

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  15. An object is placed in front of two convex lenses one by one at a dist...

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  16. If R(1)andR(2) are the radii of curvature of the spherical surfaces of...

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  17. The focal length of a thin lens in vacuum is f. If the material of the...

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  18. An astronomical telescope of ten-fold angular magnification has a leng...

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  19. Ray optics is valid, when characteristic dimensions are

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  20. The blue colour of the sky is due to

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