The density and temperature higher than in the photosphere. in the solar corona are much (T/F)
Q: An image of the disk of the Sun shows a higher brightness at the centre compared to the edges.…
A: The phenomenon you are describing, where the center of the Sun appears brighter than its edges, is…
Q: The solar wind carries mass away from the Sun at a rate of about 2 million ton/s (where 1 = 1000…
A: Sun is the star located at the center of our solar system and is a G-type main-sequence star (G2V).…
Q: Solar cycle 24 was one of the weakest and shortest solar cycle. What are some of the consequences…
A: Solution: Solar storm is a temporary disturbance in earth's magnetosphere caused by the solar winds.…
Q: The figure below shows measurements of the solar wind magnetic field at 1 AU over a 24 hour period.…
A: Required : What does the variation in the magnetic field data represent.
Q: Calculate the average surface temperature of the Sun using Wien’s Law. The wavelength of maximum…
A: λ = 500nm
Q: Why was the detection of solar neutrinos important? a) They have been suggested as an important…
A: Since you have asked multiple questions, we will solve the first one for you. In case you need…
Q: The solar wind carries mass away from the Sun at a rate of about 2 million ton/s (where 1 = 1000…
A: Solution:From the Astrophysical data book, the following data are obtained for the solar radiation…
Q: Sunspots are related to the Sun's a. core rotation b. magnetic field lines tangling c.…
A: Correct option is (b) i eagnetic field lines tangling .
Q: In a typical solar oscillation, the Sun’s surface moves up or down with a speed of 0.1m/s . If you…
A: Given data *The Sun’s surface moves up or down with a speed is v = 0.1m/s *The given wavelength is…
Q: The largest-amplitude solar pressure waves have periods of about 5 minutes and move at about 10…
A: Solar pressure waves are created by disturbances near the surface of the Sun. A wave can be…
Q: Given that the solar spectrum corresponds to a temperature of 5800 K and peaks at a wavelength of…
A: Wien's displacement law is used to calculate the maximum wavelength emitted by a blackbody at a…
Q: Why does helium fusion require a higher temperature than hydrogen fusion?
A: Fusion is the process by which two light atomic nuclei combine to form a single heavier one while…
Q: Calculate the radius of a spherical molecular cloud whose total mass equals the mass of the Sun.…
A: A molecular cloud is defined as an interstellar cloud made of gas and dust in which molecules like…
Q: There are as many absorption lines in the solar spectrum as there are elements present in the Sun.…
A: An atom, element, or molecule is capable of absorbing photons with energy equal to the energy…
Q: Calculate the energy flux density at the average distance of Venus from the Sun rv (energy flux…
A: Energy flux density at the average distance of VenusF=L4πrv2=1370 W/m24π1.082×1013 cm21 cm10-2…
Q: A sunspot has a temperature of about 4200 K. Use the Stefan-Boltzmann law to calculate how much…
A: Temperature (T) = 4200 kelvin Area (A) = 1 m2time (t) = 1 sec
Q: Even if the Earth's orbit were circular, we would still have seasons. The reason is that…
A:
Q: Use Stefan's law to calculate how much less energy is emitted per unit area of a 4500-K sunspot.
A: Sunspots are large dark regions formed on the Sun's photosphere. They are formed due to magnetic…
Q: Sunspots appear dark because they are hotter than the sur- rounding gas of the photosphere. (T/F)
A: Sunspots are dark planet-sized regions on Sun's surface. They are created due to magnetic…
Q: The most abundant element in the Sun is hydrogen. (T/F)
A: Sun is the star at the center of our solar system. It belongs to the G-type main-sequence stars.…
Q: Estimate the rate at which the Sun loses mass (kg/s) due to the solar wind. Assume the solar wind is…
A:
Q: Given that the solar spectrum corresponds to a temperature of 5800 K and peaks at a wavelength of…
A: Given: The temperature of solar spectrum is 5800 K. The solar spectrum peaks at…
Q: Given that the solar spectrum corresponds to a temperature of 5800 K and peaks at a wavelength of…
A: A blackbody is an object that is capable of absorbing all the radiation that falls on it. Black-body…
Q: What is background radiation? Why is it important to determine the back-ground radiation for the…
A: Solution- Natural radiation is always present in the environment. It is the radiation due to…
Q: How long does it take for energy produced in the Sun's core to reach the photosphere?
A: Ans. (E) : a few hundred thousand years. Explanation :-
Q: What is the cause of sunspots, flares, and prominence? Explain
A: Sunspots are areas on the surface of sun which is cooler than other parts of the sun.
Q: How are neutrinos different from most other particles like neutrons or protons? How do we detect…
A: Neutrinos are everywhere. They can be found throughout our galaxy, in our sun and thousands of…
Q: Why can't you see deeper into the sun than the photosphere?
A: Sun is made of different layers of material. The photosphere is the lowest region of the solar…
Q: Status of Sun's core and its temperature (The letters correspond to the FUSION If fusion is…
A: Required : Correct options
Q: Why are measurements of the Sun's 10.7 cm radio emission used to monitor the state of the solar…
A: in this question we discuss about sun's 10.7 cm radio emission for used to monitor sun's activity.…
Q: What evidence can you give that the corona has a very high temperature?
A: Sun is made up of different layers. Sun has layers of gas around it forming an atmosphere and the…
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- Neutrinos have never been detected experimentally. (T/F)A Crude Analysis: In about 5 billion years, the Sun is going to look a lot different. Our sun is going to turn into a red-giant, a bigger star whose core temperature is much higher than the Sun's current core temperature (you will learn about the red giants in the coming weeks). Assume the core temperature of the red-giant phase of the Sun does not go beyond 100 million degrees. Do you think the temperature is high enough for helium fusion to occur? Note that this question is about helium fusion not hydrogen fusion. How are you going about proving your claim? Question: What temperature in degrees Kelvin must the red-giant sun be at to allow for the helium-helium interactions to take place not considering the Quantum Mechanical effects (i.e. what temperature would allow helium atoms to breach the helium-helium potential wall without help from Quantum Mechanics)? Use wolfram alpha to find the values for the constants. Round your answer to two decimal places. Your answer i [ Select ] 1.47…The Sun will get brighter as it begins to run out of fuel in its core. (T/F)
- Flares are caused by magnetic disturbances in the lower atmo- sphere of the Sun. (T/F)If the temperature at the centre of the sun is 15,000,000 K and the temperature of the photosphere is 5,800 K, what is the ratio of the temperature at the centre of the Sun compared to the photosphere? Express your final answer in the fully factorised form x : 1, where x is a number that you should determine to an appropriate number of significant figures and write it using scientific notation.62. Pressure of the Photosphere. The gas pressure of the photosphere changes substantially from its upper levels to its lower levels. Near the top of the photosphere, the temperature is about 4500 K and there are about 1.6 x 1016 gas particles per cubic centimeter. In the middle, the temperature is about 5800 K and there are about 1.0 x 10" gas particles per cubic centimeter. At the bottom of the photosphere, the temperature is about 7000 K and there are about 1.5 × 10" gas particles per cubic centimeter. Use the ideal gas law (Mathematical Insight 14.2) to compare the pressures of each of these layers; explain the reason for the trend that you find. How do these gas pressures compare with Earth's atmospheric pressure at sea level?
- 1) What is thermal equilibrium? Is the Sun in thermal equilibrium? How do we know this? 2) In order to maintain thermal equilibrium, how much energy must the Sun generate every second?The velocity of the solar wind is roughly 400 km/s. How long does it take to travel from the sun to Earth?Fusion only occurs in the solar core. Assuming that 10% of the Sun’s total mass is available to participate in fusion, how long can the Sun continue hydrogen fusion until all available mass is used up? (express your answer in years)
- Sunspots appear dark because they are hotter than the sur- rounding gas of the photosphere. (T/F)The total energy stored in a radio lobe is about 1053 J. How many solar masses would have to be converted to energy to produce this energy? (Hint: Use E = mc2. Note: One solar mass equals 2.0 1030 kg.)Why are observers more likey to see aurorae in Canada than in Florida ?