ce bursts of X rays
Q: 12) Estimate the wavelength of the radiation emitted by an interstellar cloud of 4000 K. nts)
A: Interstellar clouds are made of gas and dust particles that are left over after a star dies. When an…
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: Relative Strengths of Absorption Lines lonized Neutral Hydrogen helium helium lonized metals Neutral…
A: in the graph, we have relative strength of absorption lines varies with temperature of spectral…
Q: erything radiates electromagnetic energy. Classify the object with its peak ligth emission. An…
A: Radiation can be described as energy or particles from a source that travels through space or other…
Q: What is the frequnency of an X-ray with lambda = 200 picometers
A: Wavelength of X-ray is Note:Speed of X-ray is Find:Frequency of X-ray.
Q: 6. A pendulum is given 350 J of energy for it to swing. If no energy is lost due to friction; Where…
A:
Q: 27) Calculate the time it would take for 5 solar mass black to radiate its energy.
A: When stars with mass greater than 3 or 4 solar mass die the gravitational collapse is so large that…
Q: If the breadth of a spectral line of wavelength with 4000 A is 10-4 A what is the time for which the…
A: According to Heisenberg Uncertainty Principle, ΔE. Δt = h/4π
Q: Time period of rotation of a blackhole is 5.52 milliseconds. What is the frequency of rotation in SI…
A: Given data: Time period of rotation of a blackhole is, T=5.52 ms=5.52×10-3 s.
Q: 1929, Edwin Hubble examined the relation between distance and redshift of 46 galaxies by Observing…
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Q: 26) To what size the Sun should shrink to become a black hole?pok
A: Schwarzschild radius is the limit to which a body can shrink before undergoing irreversible…
Q: Q-22: What is meant by term matter waves? Why we can not observe it in our daily life? (**)
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Q: 7) The H-alpha line from a star is observed to be 850 nm. Estimate its redshift
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Q: The correct answer is 2.18E-1. Can you show how to get this?
A: Write the expression for the intensity and substitute the corresponding values. I=P4πd2I=5×106…
Q: Hypothetically if the 100W bulb only produced green light, and 10% of the energy consumed was used…
A: The objective of the question is to calculate the number of green photons produced each second by a…
Q: using the einsteins' formula E=MC2 if 9 x 1016 J of energy was produced how much of mass in grams…
A: Given: E=MC2 Here, M is mass and C is speed of light. Speed of light is 3×108 m/s.
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- Consider a large interferometer that uses a lazer with the wavelength of 1,073.27 nm (1073.27 x 10-9m). What is the frequency of the photons emitted by this beam in hertz?Why is the gravitational shift in photons very hard to observe?How did Edwin Hubble use the concepts of the Doppler Effect to determine the speed/direction of celestial objects?