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Question
Q.The phenomenon of Aurora Borealis, the display of red and green lights in the northern hemisphere, is due to radiations in which one of the following layers?
Q.The phenomenon of Aurora Borealis, the display of red and green lights in the northern hemisphere, is due to radiations in which one of the following layers?
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Solution
The correct option is D
None of the above
Explanation:
The luminous effect of electromagnetic phenomena in the upper layers of the atmosphere is known as Aurora. It is visible in high latitudes as red, green and white arcs, draperies, streamers, rays and sheets in the night sky. Auroral emissions typically occur at altitudes of about 100 km (60 miles); however, they may occur anywhere between 80 and 250 km (about 50 to 155 miles) above Earth’s surface. Further, the Troposphere, Stratosphere, and Ozonosphere are present at max up to 50 Km. Thus, Aurora Borealis can occur in the Ionosphere, thermosphere and exosphere. It is called the Aurora Borealis (or northern lights) in the northern hemisphere and the Aurora Australis in the southern hemisphere.
None of the above
Explanation:
The luminous effect of electromagnetic phenomena in the upper layers of the atmosphere is known as Aurora. It is visible in high latitudes as red, green and white arcs, draperies, streamers, rays and sheets in the night sky. Auroral emissions typically occur at altitudes of about 100 km (60 miles); however, they may occur anywhere between 80 and 250 km (about 50 to 155 miles) above Earth’s surface. Further, the Troposphere, Stratosphere, and Ozonosphere are present at max up to 50 Km. Thus, Aurora Borealis can occur in the Ionosphere, thermosphere and exosphere. It is called the Aurora Borealis (or northern lights) in the northern hemisphere and the Aurora Australis in the southern hemisphere.
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