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Why does the sun appear reddish early in the morning?
Why does the sun appear reddish early in the morning?
Previous Year Question Papers | Science
Why does the sun appear reddish early in the morning?

Ans. As the distance of travel through the atmosphere increases during dawn and dusk. Light is scattered much more than during noon. As the shorter wavelengths are scattered, only red light is left, as it has largest wavelength of the seven colors. Thus sun appears red during sunrise and sunset.

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At a certain location in Africa, a compass points $12^{\circ}$ west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be $0.16 \mathrm{G} .$ Specify the direction and magnitude of the earth’s field at the location.At a certain location in Africa, a compass points $12^{\circ}$ west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be $0.16 \mathrm{G} .$ Specify the direction and magnitude of the earth’s field at the location.