10 Questions
How can the pulsating motions of the sun be observed?
By measuring the Doppler shifts of hydrogen lines across the face of the sun
What is the study of the surface of the sun and sun-quakes called?
Helioseismology
What causes 'earthquakes' (sun-quakes) to occur on the surface of the sun?
Disturbances in the equilibrium of forces
What is the mode of propagation for vibrations inside the sun?
Propagation through a gaseous medium
What law is used to calculate the surface temperature of a planet circulating the sun?
Stefan Boltzmann law
What does helioseismology study?
The vibrations and earthquakes occurring on the surface of the sun
What is used to measure the pulsating motions of the sun?
Measuring the Doppler shifts of hydrogen lines
What is required for thermal equilibrium according to Stefan Boltzmann law?
All power absorbed from the sun must be re-radiated by the planet
How do vibrations inside the sun propagate?
They propagate through a gaseous medium.
What method is used to observe pulsating motions of stars?
Analyzing their spectral lines
Test your knowledge about helioseismology, the study of sun-quakes and the pulsating motions of the sun through Doppler shifts of hydrogen lines. Learn about the small disturbances causing sun-quakes on the surface of the sun and their impact.
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