What is a blackbody? How do real bodies differ from blackbodies?

Q: What is a black body? On what factors does the radiation emitted from it depend?

A:

Q: The star Sirius A is 8.66 light-years from Earth. Imagine a spaceship that travels from Earth to…

A: Time dilation or contraction of time is the concept from the relativity. When observed from the…

Q: What is  Einstein’s special theory of relativity

A: Postulate of special theory of relativity  1.ist postulate  The law of physics have same form in all…

Q: In the story.Happy birthday greeting.Marissa sent a birthday greeting card to Anna thru…

A: Through the facebook, the greeting massage will reach to Anna immediately.

Q: What is the Lorentz force?

A: Lorentz force

Q: what are black holes

A: Required : What are black holes.

Q: What are the dangerous of gravitational waves

A: The dangerous of gravitational waves are mention below 1-When a gravitational wave gets emitted, the…

Q: explain semi-classical gravity

A: Solution: To explain the semi classical gravity

Q: Pair production confirm which aspect of Einstein theory? Explain direct answer please

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Q: Explain Lorentz force.

A: Lorentz force can be defined as the entire electromagnetic force experienced by a charged particle…

Q: Write your findings about special relativity with examples, how you can understand space-time…

A: Special relativity: It is introduced by the Einstein in 1905. According to him, “the physics laws…

Q: energy

A: Dark energy is contributing to 70 % of the universe and this is causing the universe to expand and…

Q: Define the total and spectral blackbody emissive powers. How are they related to each other? How do…

A: The sum of the radiation emitted over entire range of wavelengths is known as total body emissive…

Q: 8. High-energy particles are observed in laboratories by pho- tographing the tracks they leave in…

A: Given u= 0.995 c.  ∆x= 1.25 × 10-3 m  We know speed = distance / time

Q: Explain the term Gravitational lensing?

A: Gravitational lensing is the term that is used to describe the bending and distortion in the path of…

Q: needed to leave a

A:

Q: The star Sirius A is 8.66 light-years from Earth. Imagine a spaceship that travels from Earth to…

A: Time dilation or contraction of time is the concept from the relativity. When observed from the…

Q: What is time dilation and why is it significant for understanding Einstein's theory?

A: Time dilation is defined as the time cut short between the two events when observed by two observers…

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

A:

Q: 1) What is a 'black-body'? 2) What is the characteristic of Black-body radiation? 3) What is the…

A: Note : According to guidelines, we will answer only one question. If you want other question to be…

Q: How can we “observe” a black hole if neither matter nor radiation can escape from it?

A: Given:  Black hole

Q: In Figure, why can a real worldline not have a slope less than one?

A: In the given figure the straight line represents the motion of the spaceship with speed v. The value…

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: What is a black body?

A: Why it is termed as the black body? The black body term arises because incident light will be…

Q: Explain Lorentz transformstions.

A:

Q: What would you have to do to make earth a black hole ?

A: Black holes are objects in space from which even light can not escape. What makes the black hole so…

Q: Explain the Michelson-Morley experiment and why it was important.

A: Michelson- Morley interferometer experiment was an interference based experiment,basically…

Q: The biggest black hole ever discovered has a mass of 40 billion solar masses. Calculate the…

A: Given,

Q: What does a black hole sound like?

A: Black hole is a heavenly body.

Q: Exploring the Doppler effect. What would be an equation to find the frequency of the observer in…

A: Given: Exploring the Doppler effect. What would be an equation to find the frequency of the observer…

Q: What is dark matter? (200 words)

A: Answer:Dark matter is a form of matter accounting 85% of the matter in the universe and about a…

Q: Why did we define the blackbody radiation function? What does it represent? For what is it used?

A:

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: Give some examples of what we currently use holograms for, and one or two examples of what we might…

A: Give some examples of what we currently use holograms for, and one or two examples of what we might…

Q: What is a 'black-body'?

A: A blackbody is a body which can absorb all the radiation falling on it.

Q: What indicates that the gravitational wave originated from the merger of a black hole?

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Q: Why is dark energy required to explain the universe as we see it today according to the Big Bang…

A: in this question we discuss about dark energy .

Q: Describe rest energy, and explain how it can be converted to other forms.

A: Describe rest energy and how it can be converted to other forms. Rest Energy:- it is the correct…

Q: Explain blackbody radition with three laws and give its ranges

A:

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.