answersLogoWhite

0

A star's luminosity is the measure of the total energy radiated by the star in one second.

User Avatar

Wiki User

āˆ™ 11y ago

What else can I help you with?

Continue Learning about Physics

What is a measure of the energy transferred per unit time?

That is called power. In SI units, it is measured in Joules / second, which is called Watts.


What is it called when you measure of how much electrical energy carries electrons?

Electron flow is current, or coulombs per second. Electron potential is voltage or joules per second.


An energy transformation occurs and results in increased disorder is called?

The energy transformation that results in increased disorder is called entropy. It is a measure of the randomness or disorder within a system, and it tends to increase over time as energy is converted from one form to another.


If the light bulb from number 10 radiates 100 watts times 100 joules per second of photons. How many photons per second are radiated?

To find the number of photons being radiated per second, you need to calculate the energy of each photon first. Since the light bulb emits 100 watts (100 joules per second), and each photon has an energy of about 4.86 x 10^-19 joules for visible light, you can divide the total energy emitted per second by the energy of each photon to find the number of photons emitted.


How Wm-2 is the unit of energy?

Hello W/m2 is not the unit of energy. Students get confused usually as we use the symbol E for the energy radiated per unit area per second. So it is not only the energy. It is the energy emitted in one second. So J/s which equals to W. Per unit area needs /m2 So W/m2 is not the unit for energy. Only J ie joule is the unit of energy.

Related Questions

What is the measure of energy output from a star per second?

The measure of energy output from a star per second is referred to as its luminosity. Luminosity is typically expressed in watts (W) or in terms of the Sun's luminosity, denoted as Lā˜‰. This value quantifies the total amount of energy radiated by the star across all wavelengths in a given time period, reflecting its intrinsic brightness.


What is a measure of the energy transferred per unit time?

That is called power. In SI units, it is measured in Joules / second, which is called Watts.


What is it called when you measure of how much electrical energy carries electrons?

Electron flow is current, or coulombs per second. Electron potential is voltage or joules per second.


What is the measure of energy consumed by a circuit?

voltage- apex :))


Are joules used to measure frequency?

No, the joule (J) is a unit of energy. Frequency is measured in cycles per second, which is also called hertz(Hz).


A meter used to measure energy consumed is called a?

Won't it be the Wattmeter, for 1W = 1Joule/second? The domestic electricity meter is a kW/hr meter.


How does one measure watts?

heat energy produced in one second.


An energy transformation occurs and results in increased disorder is called?

The energy transformation that results in increased disorder is called entropy. It is a measure of the randomness or disorder within a system, and it tends to increase over time as energy is converted from one form to another.


How do you convert 1997436.144 Kilojoule to KiloWAtt?

You can't convert from Joules to Watts because Joules is a measure of total energy, and Watts measure energy per second.


How fast does the sun's energy travel through space?

Most of the Sun's energy is radiated as light, and other electromagnetic waves. These travel at about 300,000 km/sec.; to be precise, the speed of light is exactly 299,792,458 meters per second.


If the light bulb from number 10 radiates 100 watts times 100 joules per second of photons. How many photons per second are radiated?

To find the number of photons being radiated per second, you need to calculate the energy of each photon first. Since the light bulb emits 100 watts (100 joules per second), and each photon has an energy of about 4.86 x 10^-19 joules for visible light, you can divide the total energy emitted per second by the energy of each photon to find the number of photons emitted.


How do you convert 18 volts of radiant energy to watts?

Volts is not a measure of energy so there is no way to have 18volts of energy. Energy is measured in Joules, or sometimes calories. Watts is a measure of energy transferred per second. In electrical terms, 1 Watt is equal to 1 Volt at a current of 1 Amp. In one second, 1 Watt will transfer 1 Joule of energy.