On Sun, its eclipses and beauty spots The Hindu Science Quiz
Rare moments (Top left to right) Just before the eclipse; A chunk of the sun disappears; The crescent appears. (Bottom left to right) The Ring of Fire; the beginning of the end; the sun makes a comeback
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1 / 5 |
The sun’s outer layer the photosphere is at a temperature of about 6,000 degrees Celsius. What is the temperature of its atmosphere?
- About 5,000 degrees Celsius
- About 2,000 degrees Celsius
- About 12,000 degrees Celsius
- Close to 1 million Kelvin
The sun’s atmosphere is from 150 to 450 times as hot as its outer layer the photosphere.
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2 / 5 |
The sunspots are relatively cooler areas on the surface of the sun. They appear and disappear in cycles that are:
- one year long
- six years long
- 11 years long
- 13 years long
The sun spots appear and disappear in a cyclic manner following a cycle of 11 years. Now we are on the 25th cycle since this phenomenon has been observed.
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3 / 5 |
What is the name of the Sun’s atmosphere?
- Corona
- Heliosphere
- Heliopause
- Chromosphere
Corona is the sun’s atmosphere and is derived from the Greek word which means wreath or garland.
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4 / 5 |
In a solar eclipse when the moon’s shadow hides all but an outer ring, we see the ring of fire? What is the type of eclipse when we see this?
- Annular solar eclipse
- Total Solar eclipse
- Diamond ring effect
- none of the above
Annular solar eclipse. The word annulus itself means ring
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5 / 5 |
Every star evolves and grows and eventually ends up in a stable state. What is the final fate of a star the size of our sun?
- Black hole
- neutron star
- Quasar
- White dwarf
In about 6 billion years, the sun will end up as a white dwarf
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