Complete the following chart by using Wien's law for blackbodies. You may use a calculator and the Wien's law formula, and/or the interactive graph, to calculate the wavelength when given a temperature. Use the data table Blackbody Temperatures of the Electromagnetic Spectrum to identify the region of the electromagnetic spectrum where an object with the stated temperature emits most of its light. max (angstroms) Star Capella Sun Procyon Aldebaran Formalhaut Submit Answer T (kelvins) 4,940 5,780 6,530 4,010 8,200 EM Region -Select-- ---Select--- Radio Microwave Infrared Visible Ultraviolet X-ray V Gamma Ray

Q: Distinguish between radiative- and non-radiative transitions and give an example of  each.

A: radiative transition :-  Radiative transitions involve the absorption of a photon, if the transition…

Q: A spectrograph can be used to: O determine the chemical compositions of stars O break light from an…

A: Spectrograph can be used to break line from an object into colours

Q: GIVE ONE ILLUSTRATION OF RAY DIAGRAM AND BRIEFLY EXPLAIN THE GIVEN RAY DIAGRAM

A: GIVE ONE ILLUSTRATION OF RAY DIAGRAM AND BRIEFLY EXPLAIN THE GIVEN RAY DIAGRAM.

Q: Why Sun is Yellow?

A: Sun emits most strongly in the green-yellow-red part of the spectrum. And if  green is added to red,…

Q: Suppose a certain star has a temperature of 10,000 Kelvins (K). It will emit light of many different…

A:

Q: Define Photometry.

A: Photometry is the branch of science that deals with the measurement of light in terms of its…

Q: Using Wien's displacement law, calculate frequency for high energy density at temperature of 1000 K…

A: The energy density is given as  uν=8πν2c3hνehνKT-1 ........................................ (1)…

Q: tate one important idea that Plank used in other to obtain the correct spectral  distribution for…

A: Planck’s radiation law is a mathematical relationship formulated around 1900 by Max plank a German…

Q: Q6: The wavelength of the red light from a heliumnen laser is 633nm in air but 474nm in the aqueous…

A: Given that  Wavelength of laser light in air  λ=633 nm and wavelength of laser light in aqueous…

Q: Calculate energy by a black body surface of area when it is maintained at 227° C. liven 5 =…

A: We need to compute-Energy radiated (Q)=?The data given as-Surface area (A)=100 cm2A=10-2…

Q: Which part of the flame is the hottest? A) Blue Zone B) Luminous Zone C) Dark Zone D) Non - Luminous…

A: Blue zone of the flame is hottest because of the complete combustion and have most amount of oxygen…

Q: What process explains why stars shine the way they do? Don’t just name the process, describe it, and…

A: Due to the Nuclear Fusion reactions stars shine. In the Sun like stars Protons with very high speed…

Q: Luminous objects emit light (like a light bulb).  Non-luminous objects do not emit light (like a…

A: The example for luminous object is sun. The example for non-luminous object is earth. We are able to…

Q: If our Sun has a temperature of 6000 K and a luminosity of 1 Solar Luminosity, what is the…

A: Given:

Q: Choose the appropriate wavelengths of light in nanometers. Note that answers may be used multiple…

A: Since you have posted multiple questions, we will answer the first three only as per our guideline.…

Q: what is synchrotron diffraction? why it is important in material science? explain with image?

A: In materials science, synchrotron diffraction is a technique used to examine the crystal structure…

Q: O Question 9 Look at the three spectra of stars in the picture above. The top one, for instance, is…

A: When the spectra of stars is brighter on red end it is relatively at higher temperature where as…

Q: Brightness of a Star The luminosity of a star is L = 2.5 x 106 W, and its distance from the earth is…

A: The relationship between brightness, B, luminosity, L, and distance, d, is given as, B=L4πd2

Q: Which of the following is false about light?

A: Energy = E = hf here f = frequency = Cλ Energy = E =h Cλ

Q: What is the frequency of an organism emitting a monochromatic green light? A = Wavelength (lambda) =…

A:

Q: Define the term continuous spectrum?

A: When white light from any source is analyzed  by passing it through a prism. It observed that it…

Q: Human eyes are best equiped to see light which is in the yellow-green part of the spectrum because…

A:

Q: Define Ultraviolet Waves And Give Some Examples Of It

A: Ultraviolet waves are electromagnetic waves whose wavelengths fall under the ultraviolet spectrum.…

Q: What is the difference between the peak wavelength of the stellar spectrum and the peak wavelength…

A: The study of Planck curves and star spectra is vital to solving cosmic mysteries in the large field…

Q: QI. Calculate the wavelength (in nm) of light -x 10-19 J per photon. In what region of the…

A: Energy of photon = 722×10-19 J

Q: Topic: Waves of change: the electromagnetic spectrum  How do we determine whether a short…

A: How do we determine whether a short wavelength with high frequencies contains more energy than a…

Q: If our Sun has a temperature of 6000 K and a luminosity of 1 Solar Luminosity, what is the…

A: Temperature of the Sun,  Luminosity of the Sun,  Temperature of the star,

Q: explain the spectrum of light?

A: Light can occur at any frequency or wavelength. Light can occur in any combination of frequencies…

Q: Write one sentence describing how volume and pressure are related in terms of light particles.

A: The pressure (P) and volume (V) are the physical parameter to desribe the state of the particles.…

Q: Can you give examples for blackbodies? Is the sun a blackbody? Is the moon a blackbody? Is the LED a…

A: BLACK BODY; Definition A black body is a  type of a body ore we can say a type of a surface that can…

Q: rite a pseudoscientific explanation of what light is, and explain why it is pseudoscientific.

A: Light is an electromagnetic radiation, this radiation consist of oscillating electric and magnetic…

Q: As a beam of star light passes by the Sun, the Sun: Group of answer choices a)acts like a lens and…

A: When a beam of star light passes by a sun ,then it is bent due to gravity of Sun .

Q: 7) Considering that Energy x, examine the figure below and rearrange the following types of light in…

A: We have given a electro magnetic spectrum and it have infrared radiation, visible light and…

Q: At rest, hydrogen has a spectral line at 139.4 nm. If this line is observed at 111.2 nm for the star…

A: 3)λo=139.4 nmλ=111.2 nmc=λf

Q: ive an example of a wavelength to distance ratio (λ/d) and describe its origin, meaning, and…

A: To give an example of a wavelength to distance ratio (λ/d)

Q: Describe in terms of their properties why they are all members of this spectrum and explain why they…

A: Electromagnetic waves consist of oscillating electric and magnetic fields which are perpendicular to…

Q: Using the wavelength equation, determine the wavelength (λ) for a wave with a velocity (v) of…

A: Given wave velocity  = v = 3.00x108 m/s frequency = f = 5.45x1014 Hz We have calculate wavelength…

Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.