Sun and its Properties

Total Questions: 15

1 - Sun is a ------:
A ) Star ✅
B ) Asteroid
C ) Planet
D ) None of these

2 - ------ is the process that power the Sun.
A ) Nuclear Fusion ✅
B ) Nuclear Fission
C ) Both A and B
D ) None of these

3 - The sun is containing ------ % mass of the solar system.
A ) 99.86 ✅
B ) 89.10
C ) 79.36
D ) None of these

4 - The sun light can reach a depth of ------ meters in the ocean?
A ) 200 Meters
B ) 100 Meters
C ) 500 Meters ✅
D ) 1000 Meters

5 - How much time does sunlight take to reach Earth from the Sun?
A ) 1 hour and 12 minutes
B ) 8 minutes and 20 second ✅
C ) 20 minutes
D ) None of these

6 - Sunlight takes time to reach on earth?
A ) About 4 minutes
B ) About 6 minutes
C ) About 8 minutes ✅
D ) About 10 minutes

7 - Who among the following discovered the sunspots?
A ) Galileo ✅
B ) Einstein
C ) Johannes Kepler
D ) Copernicus

8 - The nearest Star to the planets Earth is-----:
A ) Sun ✅
B ) Canopus
C ) Betelgeuse
D ) Regel

9 - Sunspots are ------:
A ) Hotter regions on the Sun's surface
B ) Cooler region in the Sun's surface ✅
C ) Holes in the Sun's surface
D ) None of these

10 - What is the approximate age of the Sun ?
A ) 3 billion years
B ) 4.6 billion years ✅
C ) 6 billion years
D ) 10 billion years

11 - The Sun is primarily composed of which two elements?
A ) Hydrogen and helium ✅
B ) Nitrogen and helium
C ) Oxygen and Carbon
D ) Hydrogen and oxygen

12 - What is the temperature at the Sun's core?
A ) 5,000 °C
B ) 1 million °C
C ) 15 million °C ✅
D ) 50 million °C

13 - What is the approximate surface temperature layer of the Sun is called ----:
A ) Corona ✅
B ) Chromosohere
C ) Photosphere
D ) Core

14 - What is the Sun classified as ----?
A ) Yellow Dwarf ✅
B ) Red Giant
C ) Neutron Star
D ) White Dwarf

15 - The outermost layer of the Sun is called -----:
A ) Corona ✅
B ) Chromosphere
C ) Photosphere
D ) Core
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