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

1578 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

The flow of water in a pipe is turbulent. Define turbulent flow.

Explain what simple harmonic motion means?

A projectile is launched from ground level with a speed of 25 m/s at an angle of 42° to the horizontal. What is the horizontal distance from the starting point of the projectile when it hits the ground?

By considering Newton's second law and his law of gravitation, derive an expression for gravitational field strength g in terms of its mass, m, the distance from its center of mass, r, and the gravitational constant, G.

We're here to help

Company Information

Popular Requests

© MyTutorWeb Ltd 2013–2025

CLICK CEOP