## Quiz 3 Chapter 7 Flashcards

If the temperature of star B is twice the temperature of star A, what can we say about the energy emitted by the surface of star B compared to the energy emitted by star A? Each square meter emits sixteen times as much energy per second. (A) What are the Balmer lines? (B) What are the strengths of the Balmer lines in stellar spectra?

## if the temperature of star b is twice the temperature of star

Expert-Verified Answer question No one rated this answer yet — why not be the first? 😎 aditmarkas98 report flag outlined The blackbody radiation energy emitted by star a is 1/16 factor of star b energy. We need to know about black body radiation to solve this problem.

## Chapter 7: Putting it Together Atoms and Spectra

If one star has a temperature of 5,800 K and another star has a temperature of 7,400 K, how much more energy per second will the hotter star radiate from each square meter of its surface? 2.65 Transition A produces light with a wavelength of 570 nm. Transition B involves twice as much energy as A. What wavelength of light in nm does it produce? 285.

## Astronomy chapters 6

If the temperature of star B is twice the temperature of star A, what can we say about the energy emitted by the surface of star B compared to the energy emitted by star A? Each square meter emits sixteen time as much energy per second.

## Solved: Stars A and B have the same temperature, but star A

(b) Repeat the question if the stars have the same radius, but star A has twice the absolute temperature of star B. (c) What’s the ratio if star A has both twice the radius and twice the absolute temperature of star B? Step-by-step solution 100% (5 ratings) for this solution Step 1 of 4 (a).

## 5.2 The Electromagnetic Spectrum

Figure 5.6 Radiation and Earth’s Atmosphere. This figure shows the bands of the electromagnetic spectrum and how well Earth’s atmosphere transmits them. Note that high-frequency waves from space do not make it to the surface and must therefore be observed from space.

## 3.2: The Electromagnetic Spectrum

ASTR 110: Astronomy (Fitzgerald) 3: Radiation and Spectra 3.2: The Electromagnetic Spectrum.

## 5.2: The Electromagnetic Spectrum

We can use Wien’s law to calculate the temperature of a star provided we know the wavelength of peak intensity for its spectrum. If the emitted radiation from a red dwarf star has a wavelength of maximum power at 1200 nm, what is the temperature of this star, assuming it is a blackbody? Solution. Solving Wien’s law for temperature gives:.

## Stars A and B have the same temperature, but star A has twice

Star A has twice the radius and twice the absolute surface temperature of star B. The emissivity of both stars can be assumed to be 1. What is the ratio of the power output of star A to that of star B? (a) 4 (b) 8 (c) 16 (d) 32 (e) 64.

## Solved Stars A and B have the same temperature, but star A

The emissivity of both stars can be assumed to be 1. (b) Repeat the question if the stars have the same radius, but star A has twice the absolute temperature of star B. (c) Stars A and B have the same temperature, but star A has twice the radius of star B. (a) What is the ratio of star A’s power output to star B’s output due to electromagnetic.