Answers>Physics>A Level>Article

If a star with a radius of 600000km has a surface temperature of 6000K, calculate its luminosity

Use the formula Luminosity = (Surface temperature)^4Surface area Stefan's constantCalculate surface area with 4piradius^2Area=4.5210^18therefore luminosity= 4.5210^18 * (6000)^4 * 5.6710^-8luminosity = 3.3210^26 Watts

Answered by • Physics tutor

1679 Views

See similar Physics A Level tutors

If a star with a radius of 600000km has a surface temperature of 6000K, calculate its luminosity

Related Physics A Level answers

How can I describe the motion of an object falling, due to gravity, through a fluid? And when does the object reach terminal velocity?

There is a train A. On the roof of A is another frictionless train B of mass Mb. A mass Mc hangs off the front of A and is attached to the front of B by rope and frictionless pulley. How fast should A accelerate so that B wont fall off the roof of A.

What is a vector quantity

What is meant by an excited atom?

We're here to help

Company Information

Popular Requests

© MyTutorWeb Ltd 2013–2025

CLICK CEOP