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Why does the rising sun appear oval shap...

Why does the rising sun appear oval shaped ?

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Light from the rising sun reaches the earth's surface obliquely through different parts of the earth's atmosphere, suffering unequal refractions. The vertical diameter appears shorter and the horizontal diameter appears bigger. Therefore, the rising sun appears oval.
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PRADEEP-RAY OPTICS-Short Answer(b)
  1. An air bubble in a jar of water shines brightly. Why ?

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  2. For the same angle of incidence, the angles of refraction in media P, ...

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  3. Why does the rising sun appear oval shaped ?

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  4. Where should an object be placed from a convex lens to from an image o...

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  5. The focal length of an equiconvex lens placed in air is equal to radiu...

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  6. Within a glass slab, a double convex air bubble is formed. How would t...

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  7. Why does a convex lens of glass mu = 1.5 behave as a diverging lens wh...

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  8. A diverging lens of focal length F is cut into two idential parts, eac...

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  9. Draw a plot showing the variation of power of a lens with the wavelen...

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  10. A lens whose radii of curvature are different is forming the image of ...

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  11. The image of a candle is formed by a convex lens on a screen. If the l...

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  12. A convex lens forms the image of the sun at a distance of 10 cm. Where...

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  13. An equiconvex lens of focal length 15 cm is cut into two equal halves ...

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  14. A lens shown in Fig. 6(b).75 is made of two different materials. A poi...

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  15. What is focal length and power of a rectangular glass slab ?

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  16. How does focal length of a convex lens change if violet light is used ...

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  17. Two thin lenses of power + 3 D and - 1 D are held contact with each ot...

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  18. In Fig., line AB represents a lens through which course of rays is as ...

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  19. Explain with reason how the power of a diverging lens changes when (...

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  20. A ray of light suffers lateral displacement on passing through a paral...

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