If a star is moving towards us, what color will it appear?

Q: A cosmic particle is traveling with a speed 0.77 times the speed of light. What is the Lorenz factor…

A: Let the speed of cosmic particle be V m/s And the speed of light be C m/s It is given that... V =…

Q: If a luminous object were moved to one-half the original distance, it would appear   a. one-half as…

A: The final distance is half of the initial distance. df=di2

Q: How far does a beam of light travel in 4.2 years?

A: A beam of light can be defined as the projection of light energy from the source of light. There are…

Q: Excited (ionized) clouds of hydrogen gas emit the visible Balmer wavelengths, which blend to produce…

A: In this problem, it is asking about the color.

Q: What is special about the ratio of the distance traveled by a flash of light and the time the light…

A: Given: distance and time

Q: How does light relate to the electromagnetic spectrum?

A: Electromagnetic wave is the wave of electromagnetic field. The electromagnetic wave has electric and…

Q: Find the speed for a star in which this line appears at wavelength 121.8 nmnm. Express your answer…

A: Given that-- (lemda)star = 121.8 nm (lemda) = 121.6 nm Speed of light (c) = 3 × 108 m/s Question?…

Q: In the spectrum of a blackbody, the wavelength of peak intensity (a) decreases as temperature…

A: According to Wiens law product of the wavelength of peak intensity and corresponding Temperature is…

Q: radio station broadcasts with a wavelength of 2.85 m, what frequency can you find them on your radio…

A: Given  Wavelength ,= 2.85 meter  Frequency ,f =????

Q: Rank the blocks according to the speed light travels in each, from fastest to slowest.

A: The refractive index of a medium is calculated by using the formula n=cv , where c=3×108 m/s is the…

Q: Choose the correct statements concerning the electromagnetic spectrum given off by stars. (Give ALL…

A: Most electrons emit their electromagnetic energy in the form of light. Hotter stars emit higher…

Q: A bright blue star is moving away from Earth. Which of the choices best completes the following…

A: A bright blue star is moving away from Earth. Answer option A Absorption ,Red shifted

Q: Brightness of a Star The luminosity of a star is L = 2.5 x 106 W, and its distance from the earth is…

A: The relationship between brightness, B, luminosity, L, and distance, d, is given as, B=L4πd2

Q: Which of the following statements is TRUE regarding the different colors of light in the spectrum? *…

A: Here the correct options are (c) and  (d). That is the statements  • Light with a higher frequency…

Q: What gives rise to spectral lines? What is happening within an atom that causes it to emite light in…

A:

Q: An astronomer studying the light emitted by a star notices that the wavelength of the light is a…

A: According to the relativistic doppler effect, when an object is in relative motion with an observer…

Q: A star is moving towards us at an extremely fast speed. What is likely happening to the light wave…

A: Doppler effect: The wavelength or frequency of radiation from a source appears to change due to its…

Q: True or False: When a light source approaches us, there is an increase in the frequency we measure.…

A:

Q: Differentiate the colors in the table based on wavelength in four [4] sentences.

A: 1.Minimum wavelength of res is 625 nm and highest wavelength is 740 nm

Q: Determine the frequency of a wave of light if the wavelength is 6.24 x 10-9m. O 8.4 x1016 Hz O 1.9…

A: The relation between the wavelength and the frequency is  frequency = speed of lightwavelength

Q: refers to the amount of refers to the amount of light leaving a source, while light arriving at a…

A: Luminosity is the total amount of light emitted by the source in all directions or it is the amount…

Q: Stereoscopic parallax is caused by taking photographs of same objects from same point of observation…

A: Required : True or False.

Q: What is the color of the stars shown on the diagram that have the lowest surface temperature? O red…

A: Required: Color of the stars,

Q: A blackbody radiator in the shape of a sphere has a surface area of 152 If it has a temperature of…

A: Given quantities: Temperature of the radiator (T) = 1200 K Surface area of the sphere (A) = 15 cm2…

Q: Sunlight exhibits what type of spectrum?

A: A spectrum exhibited by the sunlight is the visible spectrum.

Q: The Hubble Space Telescope is in low-Earth orbit. What is the magnitude of stellar aberration…

A: 1) See, By taking the spectrum of a distant object, such as a galaxy, astronomers can see a shift in…

Q: How long (in seconds) will it take a radio signal to travel 3.08 x1010 m through space?

A: The distance traveled by the signal is, d=3.08×1010 m The speed of a radio signal is, v=3×108 m/s

Q: If a star gives off light at a peak wavelength of 6.80x10-7 m. What would be the temperature of this…

A: Given peak wavelength = 6.8×10-7m

Q: Q9. If the luminosity of star B is 25 times the luminosity of star A, then find the distance of star…

A: Question 9: Given data: The ratio of the luminosity of the star B to star A is BBBA=25 The distance…

Q: How do stars move at the north / south pole, at the Earth's equator, and at different latitudes…

A: Stars are the heavier mass objects in the space around which small planets are revolving in…

Q: Can you now explain why blue stars hotter than the red stars?

A: 5) "Wien's displacement law states that the peak wavelength of the spectrum of light radiated by a…

Q: Is light emitted from the surface of a massive star red-shifted or blue-shifted by gravity?

A: red shift or blue shift

Q: What is the significance of the color of a star? O The color tells how far away the star is O The…

A: Color of star:-

Q: Why will body emit more radiation under similar conditions, a black body or a polished body?

A: According to the Stefan-Boltzmann law, the energy radiated is

Q: Splitting hairs, if you shine a beam of colored light to a friend above in a high tower, will the…

A: When the light source moves in the upward direction and away from the source, then the wavelength is…

Q: What is uncertainty?

A: The interval within which truth value are often considered to roll in the hay a given level of…

Q: When astronomers look at the spectrum of the Sun, they noticed that the light from one edge is…

A:

Q: Which of the following is true about light?

A: Light acts as a particle and wave at the same time. In quantum mechanics, wave and particle has dual…

Q: II A D F Compare E and F for brightness A. E>F B. E<F С. Е-F

A:

Q: If you observe a star’s blackbody spectrum twice, once from Earth and once from a space shuttle…

A: When radiation passes through any sample of gas, the atoms get excited by absorbing that particular…