Exploring Wein's Law and Luminosity

What does Wien's Displacement Law relate to in terms of black body radiation?

• The total energy emitted by a black body

• The peak wavelength of emission and temperature

• The colour of the black body

• The speed of light

Which of the following best describes a black body?

• An object that reflects all incident light

• An object that absorbs all incident radiation

• An object that emits only visible light

• An object that is transparent to all radiation

According to Wien's Displacement Law, what happens to the peak wavelength as the temperature of a black body increases?

• It remains constant

• It increases

• It decreases

• It becomes infinite

What is the formula for Wien's Displacement Law?

What is the constant 'b' in Wien's Displacement Law approximately equal to?

Which law is used to calculate the luminosity of a star?

• Newton's Law of Gravitation

• Stefan-Boltzmann Law

• Ohm's Law

• Hooke's Law

What is the formula for the Stefan-Boltzmann Law?

• The speed of light

• The proportionality constant in the Stefan-Boltzmann Law

• The gravitational constant

• The Planck constant

How does the luminosity of a star change if its temperature is doubled, assuming its radius remains constant?

• It remains the same

• It doubles

• It increases by a factor of 16

• It decreases by a factor of 4

Which of the following is an application of Wien's Law?

• Determining the age of the universe

• Measuring the temperature of stars

• Calculating the speed of sound

• Estimating the mass of planets