Question

A star in the solar system gives of light with a frequency of 8.5×1014 Hz. If...

A star in the solar system gives of light with a frequency of 8.5×1014 Hz. If the star approaches Earth with a speed of 170.0 km/s, what is the frequency of the light seen by someone on earth?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Solution:

the frequency of the light seen by someone on earth  

   where c = speed of light = 3*10 ^8 m/s ; = speed of the star = 170.0 km/s = 170*10^3 m/s ; and = frequency of light emitted by the star = 8.5×10^14 Hz

so

so ,the frequency of the light seen by someone on earth is

Answer:

Thank You.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An astronomer discovers a star that has a peak frequency of 1.6×1014 Hz. Determine the temperature...
An astronomer discovers a star that has a peak frequency of 1.6×1014 Hz. Determine the temperature of the star's surface. T = Determine the peak frequency the average human emits. peak frequency =
You shine light of frequency 4.00 × 1014 Hz through a glass plate whose index of...
You shine light of frequency 4.00 × 1014 Hz through a glass plate whose index of refraction for this light is 1.50. The wavelength of this light in the glass is approximately 500 nm. 110 nm. 800 nm. 425 nm. 380 nm.
Part A: The frequency of green light is approximately 6.0*1014 s-1. The mass of an electron...
Part A: The frequency of green light is approximately 6.0*1014 s-1. The mass of an electron is 9.11*10-31 kg. If an electron absorbs all the energy from one photon of green light, and all of it becomes kinetic energy for the the electron, how much more kinetic energy will the electron have after absorbing the photon? Part B: What is the wavelength of a photon with the frequency 4.0*1014 Hz? Part C: Photons with a frequency of 4.0*1014 Hz are...
A star is moving away from the earth at 45.9 km/s. By how much will the...
A star is moving away from the earth at 45.9 km/s. By how much will the Hα line (f = 4.571 1014 Hz) be shifted and in what direction? (Use the sign of your answer to indicate whether it will be shifted to a larger (+) or smaller (−) frequency.)
A laser pointer used has a frequency of 2.04* 1014 Hz. a. What is the wavelength...
A laser pointer used has a frequency of 2.04* 1014 Hz. a. What is the wavelength of the light? b. If 23.7 KJ of energy is given off when pointing at an excited chemical equation on the projector screen, how many photons were emitted?
35.18 Coherent light of frequency 6.38×1014 Hz passes through two thin slits and falls on a...
35.18 Coherent light of frequency 6.38×1014 Hz passes through two thin slits and falls on a screen 85.0 cmaway. You observe that the third bright fringe occurs at ± 3.10 cm on either side of the central bright fringe. 1- How far apart are the two slits? 2- At what distance from the central bright fringe will the third dark fringe occur?
Coherent monochromatic light of frequency 6.15 × 1014 Hz passes through two narrow slits and falls...
Coherent monochromatic light of frequency 6.15 × 1014 Hz passes through two narrow slits and falls on a screen located 2.50 m away. The m = 20 bright fringe is at a distance of 1.45 m from the center of the pattern. (Do not use the small-angle approximation) 1) What is the distance between the two slits? 2) What is the distance of the m = 15 dark fringe from the center of the pattern?
Coherent light of frequency 6.32×1014 Hz passes through two thin slits and falls on a screen...
Coherent light of frequency 6.32×1014 Hz passes through two thin slits and falls on a screen 88.0 cm away. You observe that the third bright fringe occurs at ± 3.12 cm on either side of the central bright fringe. Part A How far apart are the two slits? d = mm Part B At what distance from the central bright fringe will the third dark fringe occur? y = cm
A light-rail commuter train blows its 200 Hz horn as it approaches a crossing. The speed...
A light-rail commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 341 m/s. (a) An observer waiting at the crossing receives a frequency of 213 Hz. What is the speed of the train? ____m/s (b) What frequency does the observer receive as the train moves away? ____Hz
If the work function of a material is 2.20 eV, what frequency of incident light would...
If the work function of a material is 2.20 eV, what frequency of incident light would give a maximum kinetic energy of 0.25 eV to the photoelectrons ejected from the surface of this material? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s) 5.92 × 1014 Hz 3.53 × 1014 Hz 1.02 × 1014 Hz 2.50 × 1014 Hz 2.05 × 1014 Hz
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT