Sun and its properties

Total Questions: 15

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

2 - ----- is a 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 ) 79.36
B ) 89.10
C ) 99.86 ✅
D ) None of these

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

5 - How many time does sunlight take to reach Earth from the Sun?
A ) 8 minutes and 20 seconds ✅
B ) 1 hour and 12 minutes
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 ) Regel
C ) Canopus
D ) Betelgeuse

9 - Sunspots are ----:
A ) Hotter regions on the Sun's surface
B ) Cooler regions on 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 ) Oxygen and Carbon
C ) Nitrogen and Helium
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 of the Sun?
A ) 3,500 k
B ) 5,500 k ✅
C ) 10,000 k
D ) 15,000 k

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

15 - What is the Sun classified as -----?
A ) Yellow Dwarf ✅
B ) Red Dwarf
C ) White Dwarf
D ) Neutron star
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