Explanation Step 1: Observe the brightness of the star to find out the time period Step 2: Use the luminosity-time period graph to find the corresponding luminosity Step 3: Use the luminosity and the average observed brightness to calculate the approximate distance using the formula: D i s t a n c e ( i n

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Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars d…

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths…

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Chapter 33, Problem 7Q

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How the Cepheid variable star is used to measure the distance to galaxies?

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Chapter 33, Problem 6Q

Chapter 33, Problem 8Q

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Ch. 33 - Prob. 1OQ Ch. 33 - Prob. 2OQ Ch. 33 - Prob. 1Q Ch. 33 - Prob. 2Q Ch. 33 - Prob. 3Q Ch. 33 - Prob. 4Q Ch. 33 - Prob. 5Q Ch. 33 - Prob. 6Q Ch. 33 - Prob. 7Q Ch. 33 - Prob. 8Q

Ch. 33 - Prob. 9Q Ch. 33 - Prob. 10Q Ch. 33 - Prob. 11Q Ch. 33 - Prob. 12Q Ch. 33 - Prob. 13Q Ch. 33 - Prob. 14Q Ch. 33 - Prob. 15Q Ch. 33 - Prob. 16Q Ch. 33 - Prob. 17Q Ch. 33 - Prob. 18Q Ch. 33 - Prob. 1MCQ Ch. 33 - Prob. 2MCQ Ch. 33 - Prob. 3MCQ Ch. 33 - Prob. 4MCQ Ch. 33 - Prob. 5MCQ Ch. 33 - Prob. 6MCQ Ch. 33 - Prob. 7MCQ Ch. 33 - Prob. 8MCQ Ch. 33 - Prob. 9MCQ Ch. 33 - Prob. 10MCQ Ch. 33 - Prob. 1P Ch. 33 - Prob. 2P Ch. 33 - Prob. 3P Ch. 33 - Prob. 4P Ch. 33 - Prob. 5P Ch. 33 - Prob. 6P Ch. 33 - Prob. 7P Ch. 33 - Prob. 8P Ch. 33 - Prob. 9P Ch. 33 - Prob. 10P Ch. 33 - Prob. 11P Ch. 33 - Prob. 12P Ch. 33 - Prob. 13P Ch. 33 - Prob. 14P Ch. 33 - Prob. 15P Ch. 33 - Prob. 16P Ch. 33 - Prob. 17P Ch. 33 - Prob. 18P Ch. 33 - Prob. 19P Ch. 33 - Prob. 20P Ch. 33 - Prob. 21P Ch. 33 - Prob. 22P Ch. 33 - Prob. 23P Ch. 33 - Prob. 24P Ch. 33 - Prob. 25P Ch. 33 - Prob. 26P Ch. 33 - Prob. 27P Ch. 33 - Prob. 28P Ch. 33 - Prob. 29P Ch. 33 - Prob. 30P Ch. 33 - Prob. 31P Ch. 33 - Prob. 32P Ch. 33 - Prob. 33P Ch. 33 - Prob. 34P Ch. 33 - Prob. 35P Ch. 33 - Prob. 36P Ch. 33 - Prob. 37P Ch. 33 - Prob. 38P Ch. 33 - Prob. 39GP Ch. 33 - Prob. 40GP Ch. 33 - Prob. 41GP Ch. 33 - Prob. 42GP Ch. 33 - Prob. 43GP Ch. 33 - Prob. 44GP Ch. 33 - Prob. 45GP Ch. 33 - Prob. 46GP Ch. 33 - Prob. 47GP Ch. 33 - Prob. 48GP Ch. 33 - Prob. 49GP Ch. 33 - Prob. 50GP Ch. 33 - Prob. 51GP Ch. 33 - Prob. 52GP

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