EASY
Earn 100

What is life cycle of Sun?

Important Questions on The Universe

MEDIUM

Gas pressure of star depends on the _____ and temperature of the gas.

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The larger the mass of a star the faster is its _____. Explain.
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Why was the name black hole given?
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Light year is a unit of time.
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Stars are self luminous objects.
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Why do stars evolve?
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_____ of a star means change in its properties with time resulting in its passing through different stages.
EASY

Write the quadrants in which the following points lie:

-4,7

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The end stage of a star depends on its initial mass.
 
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Which types of stars end their life as a neutron star?
 
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Only one star can be produced by the contraction of a huge interstellar cloud.
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Stars are formed when temperature and density starts increasing due to contraction of interstellar clouds.
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How do stars form?
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In the Sun, energy is generated by the fusion of hydrogen nuclei to form _____ nuclei.
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What are the three end stages of stars?
EASY
A star ends its life as a neutron star when the pressure of its electrons balances its gravity.
EASY
Cotyledons are also called-
MEDIUM

Write a paragraph on the birth and life cycle of stars using figure

Question Image  

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Describe white dwarfs.
MEDIUM
Select the correct relation between gas pressure of a star (P), temperature (T) and density (D).