Which of the following lists is the correct order of increasing velocity of light inside the mayerial( lowest velocity to highest velocity).

Q: About how much of the universe is believed to be composed of dark energy? O 68-73% O 10-12% O 4-5% O…

A: We know very less about the universe . and said universe is expand .  the maximum thing is unknown…

Q: What would the expected Doppler shift be for an object moving away from the observer?

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Q: Bob shines a powerful laser beam from his deep space station out into space. Alice pursues the beam…

A: Required : Speed of the laser.

Q: What is Schwarzschild radius?

A: The radius of the event horizon in which no element can escape the black hole, even light is known…

Q: An observer detects two explosions that occur at the same time, one near her and the other 100 km…

A: The solution to this question is based on the concept of Lorentz Transformation.

Q: Which one of these statements about spacetime is false? Waves can travel through spacetime. They are…

A: Time is considered as forth dimension in space time coordinates.

Q: An astronaut takes a trip to Sirius, which is located a distance of 8 light-years from the Earth.…

A: The formula for the length contraction is:

Q: Consider the following figure. If you are traveling at 25% the speed of light (0.25c), what would…

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Q: Travel to the stars requires hundreds or thousands of years, even at the speed of light. Some people…

A: It is given that, M=1000 kg

Q: What is the principal difference between the theory of special relativity and the theory of general…

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Q: Calculate, how fast you were going in meters per second when you ran the red light because it…

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Q: Suppose a spaceship heading directly towards the Earth at half the speed of light sends a signal to…

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Q: How does a gravitational red-shift differ from a Doppler red shift?

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Q: n enemy spacecraft attempts to escape from your spacecraft by moving away from you at 0.273 of the…

A: Given data:-  The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away…

Q: In Chapter 26, we learned that light travels more slowly in glass than in air. Does this contradict…

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Q: With regard to reference frames, how does general relativity differ from special relativity?

A: In special theory of relativity, the law of nature is same for all observers in the inertial and…

Q: An astronaut takes a trip to Sirius, which is located a distance of 8 light years from the Earth (as…

A: Given: Distance of Sirius from Earth is 8 light years.. Time taken for the one way journey is 6 yr.…

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A:

Q: under what circumstances would sound have doppler redshift

A: Red shift : The shift of wavelength toward red. This means increase in wavelength. Red has longest…

Q: Does observed gravitational lensing correspond to a converging or diverging lens? Explain briefly.

A: Gravitational lensing: In this effect, the light rays bend towards massive objects in the space due…

Q: Suppose the observer Ơ on the train in Figure 38.6 aims her flashlight at the far wall of the boxcar…

A: Proper time can be defined as time measured by the observer in the frame of reference where…

Q: > A spaceship is travelling at 0.9c of light speed. If the pilot measured his distance to Earth is…

A: Given Velocity of spaceship = 0.9c Concept Length contraction:- Moving object appears smaller than…

Q: If light of frequency 200,000,000 vib/s from a star is observed to have a frequency of 188,000,000…

A: f0 is the observed frequencyf is the source frequencyv source velocityc is the speed of light…

Q: rocket ship traveling near the speed of light appears to a stationary observer to shorten with…

A: Given :) Actual length=200 m Required:) apparent length if it is travelling with v=0.99 c

Q: What is Newtonian principle of relativity?

A: Newtonian principle of relativity: Newton describes the motion of object with respect to a frame.…

Q: If a galaxy moving away from the Earth has a speed of 1000 km/s and emits 656 nm light…

A: The speed of the galaxy is 1000 km/s and the soeed of Earth's orbit is 30 km/s which is…

Q: In 2000, a 20-year-old astronaut left Earth to explore the galaxy; her spaceship travels at 2.5 X 10…

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Q: What speed should a galaxy move with respect to us so that the sodium line at 58 9.0 nm is observed…

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Q: A severely injured Peter can only live for the next 3.5 hours. Before dying, he wants to go back to…

A: Speed is the distance traveled per unit time. Its SI unit is m/s. The SI unit of distance is meter.…

Q: What speed should a galaxy move with respect to us so that the sodium line at 589.0 nm is observed…

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Q: What is faster than the speed of light?

A: According to the Einstein theory nothing can travel faster than the speed of light in a vacuum.

Q: Explain the direct method used by Albert Michelson to calculate the speed of light.

A: The experimental setup was as follows: Light generated from a source is directed towards a rotating…

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

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Q: While on board a starship, you intercept signals from four shuttle craft that are moving either…

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Q: Consider two spaceships, each traveling at 0.005c in a straight line. Ship A is moving directly away…

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