Evidence for the Big Bang Theory for the beginning of our universe which is seen by astronomers studying the light which is coming to us from far away quasars and galaxies is that the light is shifted towards the ____________ end of the spectrum in all of those celestial bodies (except the galaxy of Andromeda). This is indicative that those celestial bodies are all (but Andromeda) moving away from us (our point in space). Group of answer choices red green orange ultraviolet blue

Q: Determine the maximum distance at which an observer can still distinguish two small bright sources…

A: SOlution: aperture of pupil d = 4 mm wavelength = 432 nm light istance = 15 mm

Q: What EM waves are the most dangerous and why?

A: Em rays consist of many rays like infra red,UV,etc. UV rays are the most harmful and are almost…

Q: Blue light emitted by a light source on a spaceship is observed on a planet, as red due to the…

A:

Q: A Whirlpool Microwave oven uses light with a wavelength of 86.98 cm to cook your food. What is the…

A: Given, Wavelength of microwave light λ=86.98 cm=86.98×10-2 m   We know the expression for wavelength…

Q: One of the wavelengths of light emitted by hydrogen atoms under normal laboratory conditions is 656…

A:

Q: Determine the maximum distance at which an observer can still distinguish two small bright sources…

A: distance between sources of light (L) = 15 mm = 0.015 m Wavelength (λ) = 432 nm Pupil size (d) = 4…

Q: Why don't you notice light doppler shifting as the car drives by and explain why "that reason" is…

A: The Doppler shifting becomes prominent as the speed between the source and the observer is in…

Q: A spaceship from a friendly, extragalactic planet flies toward Earth at 0.201 times the speed of…

A: V=0.201c λe=681 nm

Q: Two parallel plates A and B are velocity corresponding to an accelerat through a hole in plate A at…

A:

Q: The electromagnetic spectrum ranges from cosmic rays to radio waves. Although we don't look at…

A:

Q: Who gave the first ACCURATE value for the speed of light?    Albert Michelson   Isaac Newton…

A: The first precise calculations of light’s velocity was made in the 1920s by American physicist…

Q: A distant star is traveling directly away from Earth with a speedof 49,500 km>s. By what factor…

A: The speed of the star, u = 49500 km/s = Consider that the original wavelength is  and observed…

Q: The elliptical galaxy NGC 4889 is the largest galaxy in the Coma Cluster (shown in the image below…

A: Given: The Measured wavelength: λm=401.8 nm The rest wavelength: λr=393.3 nm

Q: The photogates you used operate by emitting a tiny laser beam and triggering a time stamp when the…

A: Photogate is used to get extremely precise timing in physics experiment. It uses infrared laser and…

Q: Find the approximate temperature of a red star that emits light with a wavelength of maximum…

A: Wien's displacement law states that T = (2.9 × 10-3)/λmaximum where T is the temperature of the…

Q: A galaxy moves away from the Earth. It is observed that light emitted by the galaxy at a wavelength…

A: Formula used: The original wavelength at which light emitted by the galaxy is, λ0=705.2 nm The…

Q: If you consider a blinking light source that is receding from an observer, what happens to its…

A: Let a blinking source of light is moving away (receding) from an observer at speed 'v'.

Q: A neutral hydrogen atom has a single proton and a single electron. When separated by a distance of…

A:

Q: Part 2 of 4 We have an energy relation for each photon, where subscripts 1 and 2 represent the 73 nm…

A:

Q: Consider a pulse of laser light aimed at the moon that bounces back to Earth. The distance between…

A: a)Let the distance between the Earth and the moon be denoted by D.The total distance travelled by…

Q: Due to the Doppler effect, a moving aircraft sees the broadcast signals at 376 MHz from a stationary…

A: Given information: Here, f’ and f are the observed and the actual frequency respectively and v is…

Q: Problem A dog can live 8 years. You want to see your dog when you are at 100 years old. And you are…

A: You see your dog at 8 year old, when it was 80 year disappear. so the proper time interval (to) = 8…

Q: A Whirlpool Microwave oven uses light with a wavelength of 86.98 cm to cook your food. What is the…

A: Given data:  Wavelength (λ) = 86.98 cm = 0.8698 m 1 GHz = 1×109 Hz Frequency (υ) =?

Q: A police officer's radar gun emits radio waves at a frequency of 11.7 GHz11.7 GHz. What is the…

A:

Q: By what fraction are the wavelengths in this star's spectrum shifted?

A: Using Doppler Effect,

Q: GC 4889 is the largest galaxy in the Coma Cluster (shown in the image below taken by the Hubble…

A: We know that the  recessional velocity of the galaxies in terms of the speed of length and…

Q: Identify regions of the electromagnetic  spectrum that may be hard to classify as strictly…

A: EM waves which are able to transmit through a medium are classified as transparent  EM waves which…

Q: y would have been on, take the orbital

A: Given Eclipses at B are observed 22 minutes. Orbital diameter of earth= 3*1011 m

Q: What do you understand by statement that velocity of light is absolute?

A:

Q: Light does bend in a gravitational field. Why is this bending not taken into consideration by…

A: Light bends in gravitational field .But the gravitational field should be strong enough to notice…

Q: A neighboring galaxy rotates on its axis so that stars on one side move toward us as fast as 200…

A: λob=λ1+u/c1-u/c=656.0 nm1+200 km3.0×105 km1-200 km3.0×105 km=656.4 nm

Q: Which light (of the choices given) has the slowest speed in vacuum (or air)? -Gamma rays- -X-rays-…

A: We have given different light of choices and we have to tell which one is slowest speed in vacuum…

Q: Distances in space are often quoted in units of light years, the distance light travels in one year.…

A: Given data The distance is d=12.0×109 light years One light-year is the distance taken by the light…

Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.