Assertion : In high latitudes,one sees colour | vedclass

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(A) The phenomenon described is known as the Aurora. In polar regions (high latitudes),high-energy charged particles (electrons and protons) emitted b

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) The phenomenon described is known as the Aurora. In polar regions (high latitudes),high-energy charged particles (electrons and protons) emitted by the sun (solar wind) are guided by the Earth's magnetic field lines toward the poles. As these particles enter the upper atmosphere,they collide with gas atoms and molecules,causing them to emit light,which appears as colourful curtains or streamers. Therefore,the Assertion is correct,and the Reason correctly explains the mechanism behind this phenomenon. In the northern hemisphere,this is called $Aurora$ $Borealis$,and in the southern hemisphere,it is called $Aurora$ $Australis$.

Assertion : In high latitudes,one sees colourful curtains of light hanging down from high altitudes.
Reason : The high-energy charged particles from the sun are deflected to polar regions by the magnetic field of the earth.

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Assertion : In high latitudes,one sees colourful curtains of light hanging down from high altitudes.Reason : The high-energy charged particles from the sun are deflected to polar regions by the magnetic field of the earth.