Question 48 (1 point) A constellation is a set of stars grouped into a figure. Q

Question

Question 48 (1 point)

A constellation is a set of stars grouped into a figure.

Question 48 options:

Question 49 (1 point)

A forbidden transition is called forbidden because it never happens.

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Question 50 (1 point)

Comets are mainly rock, with some icy parts.

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Question 51 (1 point)

The CNO cycle describes how a star turns hydrogen into helium.

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Question 52 (1 point)

Opacity is a measure of how much light is blocked when it passes through a substance.

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Question 53 (1 point)

The solar wind is mainly made of protons and electrons.

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Question 54 (1 point)

If you double the temperature of a blackbody, it will emit double the energy.

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Question 55 (1 point)

An O type star is cooler than a G type star.

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Question 56 (1 point)

Absorption lines from nebulae can tell us what it is made of.

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Question 57 (1 point)

Stars with greater mass live longer than stars with less mass.

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Question 58 (1 point)

Olber's paradox implies that the universe is infinite, unchanging, homogeneous, and isotropic.

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Explanation / Answer

Answer to 48 is true. constellation refers to a group of stars which is named after some mythological charecters. Example is Lyra,perseus etc. So, A constellation is a set of stars grouped into a figure.

Answer to 50 is true. Comets are composed by rocks,ice,dust etc. So Comets are mainly rock, with some icy parts.

Answer to 51 is True. CNO cycle i.e carbon- nitrogen-oxygen is one of reactions in where star turns hydrogen to hilium and the other is proton to proton chain. So The CNO cycle describes how a star turns hydrogen into helium.

Answer to 52 is True. Opacity refers to the quality of transperency lack. So it measures of how much light is blocked when it passes through a substance.

Answer to 53 is True. Solar wind is made of mainly electron and proton of hydrogen and hilium mainly. So The solar wind is mainly made of protons and electrons.

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