Extrasolar Planets. In the not-too-distant future, it should be possible to detect the presence of planets moving around other stars by measuring the Doppler shift in the infrared light they emit. If a planet is going around its star at 50 km/h while emitting infrared light of frequency 3.330 x 1014 Hz, what frequency light will be received from this planet when it is moving directly away from us? (Note: Infrared light is light having wavelengths longer than those of visible lig

Q: In a biprism experiment, the slit is illuminated by the light of wavelength 5890A.the distance…

A: The given data are: λ=5890 A=5890×10-10 mD=0.8 md=0.2 cm=0.002 mx=10 cm=0.1 m Here, λ denotes the…

Q: The spectral emissivity and spectral reflectivity of a diffuse surface are given below: 1.0 0.2 0.2…

A:

Q: Taking the sun as a black body with a radius of 6.92 x 108 m having a maximum intensity of emission…

A: Here we will use wein law to calculate the temperature and use it to get the flux.

Q: 2. Calculate the view factor FBA for the following shape. The radii for the hollow circle, circle A…

A: Given that, Radius of hollow circle A, rA=8 m,   and RA=10 m,Radius of circle B, RB=5 m,Vertical…

Q: a su spectral nemispherical emissivity figure below m). 's law is = C, here C = 2898 μmk and…

A: Given:Wien's law,λmT=CC=2898 μmKFind,Temperature at which hemispherical emissivity will be highest?

Q: Calculate the net rate of energy exchange by thermal radiation between a  gray convex body 1 and its…

A:

Q: A regular tetrahedron of side length 0.5 m has black internal surfaces with the following…

A: Given data, Side length of the tetrahedron, L = 0.5 m From the table, Temperature of surface 1, T1…

Q: As far as diathermy concern, we use microwaves to deposit its energy in the surface of fatty layers…

A: Diathermy is the use of microwaves aur ultrasound to penetrate energy into the body so as to eat it…

Q: A space satellite in the shape  of a sphere is traveling in outer space, where its surface…

A: Given data: TS=315.2 KT∞=2 Kε=0.15 Need to determine the heat loss per m2 by radiation.

Q: Spectral hemispherical reflectivity distribution of an opaque surface is shown below. Surface is…

A:

Q: 1. A circular furnace has 2 end black surfaces and surface 1 is kept at 500 K and surface 2 is kept…

A:

Q: Two concentric spheres of diameter D = 0.8 m and D2 = 1.2 m are separated by an air space and have…

A:

Q: Is the wavelength within the microwave range? Determine the energy of each photon

A: (i). No , the wavelength is not within the microwave range (ii) E = 7.9512 * 10^ (- 26) Js

Q: Two concentric spheres of diameter D = 0.9 m and D2 = 1.2 m are separated by an air space and have…

A: Since we only answer up to 3 subparts so we will answer first 3. Please resubmit the question by…

Q: 0.3 0.1 3. 7.

A: Any given surface at any given temperature (absolute) will emit thermal radiation in all possible…

Q: Current Attempt in Progress * Your answer is incorrect. Consider a small surface of area A₁ =…

A:

Q: An object has a surface area 3.5 m) with ( 8.2 um) peak wavelength of emission, treating it as a…

A: Givensurface area of the object A=3.5m2peak wavelength λpeak =8.2μmtemperatire of the room…

Q: In order to appreciate why the wavelike properties of particles had not been noticed, calculate the…

A: It is known that: Mass of particle, m=1g⇒10-3 kg Velocity, v=1 m/s

Q: the total power emitted by a Black Body at a temperature of 2000 K with wavelength range A= 1.5 um –…

A:

Q: A half cylindrical shell with a radius of 75 cm is held at 200°C and has an emissivity of 0.4. A…

A:

Q: the emissive

A: Given; Emissive power of a black body is P, If its absolute temperature is doubled. Emissive power…

Q: If the distance between the Sun and the Earth is 1.5 × 10¹m and velocity of light is 3x 10°m/s, then…

A: Given, Distance between the Sun and the Earth = d = 1.5 x 1011 m Velocity of light = v = 3 x 108 m/s…

Q: Spectral hemispherical reflectivity distribution of an opaque surface is shown below. Surface is…

A: Total irradiation in surface, Gtotal = Area under irradiation curve Gtotal = A1+A2+A3 Gtotal…

Q: A spherical particle of diameter D1 = 10 mm is suspended by a thin wire within a cylindrical tube of…

A:

Q: What is the total hemispherical emissivity,, for a real surface with a temperature of T = 2900K,…

A: Therefore, the answer is- 0.352,Explanation:

Q: The value of FPQ

A: Given data;  From the given figure, Three sets of parallel plates LM,NR and PQ.   View factor FU is…

Q: 10- In transparent materiel the greatest part is * O absorptivity are equal O reflectivity…

A:

Q: The wavelength at which the Sun emits its most intense light is about 550nm. Assuming the Sun…

A:

Q: Consider a blackbody at 300K with maximum emissive power. Calculate the wavelength (Im) of the…

A:

Q: Spectral hemispherical reflectivity distribution of an opaque surface is shown below. Surface is…

A: Heat supplied is the heat supplied for power generation or for the useful work of a machine. This…

Q: Light from an ideal spherical blackbody 15.0 cm in diameteris analyzed by using a diffraction…

A: Given data: The diameter of the black body is d=15 cm The angle is θ=14.4°

Q: 3. Complete the matrix of view factors below for the 4-Zone Enclosure: A: = 1.25 in?; A2 = 2.75 in?;…

A: A1 F14 = A4 F41 1.25 ×F14 = 5.72×0.07 F14 = 0.32 F11 + F12 + F13 + F14 = 1 0 + F12 + 0.25 + 0.32 = 1…

Q: An opaque surface with the prescribed spectral, hemispherical reflectivity distribution is subject…

A: STEP -1 : Answer of (1)The spectral absorptivity distribution (αλ​)αλ​=1−ρλ​    STEP -2 : Answer of…

Q: The folowing figure was generated from experimental data relating to spectral black body emissive…

A: The Wien's displacement law is as follows: λT=Cλ=1THere,λ is the wavelengthT is the temperatureC is…

Q: The spectral, hemispherical absorptivity of an opaque surface and the spectral distribution of…

A: Given Data: α1=0.6T=1100 K   To Find:

Q: A thermocouple whose surface is diffuse and gray with an emissivity of 0.60 indicates a temperature…

A: Solution

Q: A small surface of area A1 = 5 cm? emits radiation as a blackbody, and part of the radiation emitted…

A: Given data: A1=5 cm2A2=8 cm2Q˙1-2=274×10-6 W Need to determine the intensity of radiation emitted by…

Q: List this type of electromagnetic radiation in order of (i) increasing frequency and (ii) decreasing…

A: i) Radio<Microwave<IR<Visible<UV<X-Ray

Q: A spherical particle of diameter DI = 10 mm is suspended by a thin wire within a cylindrical tube of…

A: Given: Length of the tube→L=0.5 m=500 mm Inner Diameter of the tube→D2=30 mm=0.03 m Diameter of the…

Q: The sonic screwdriver that Dr Who is wielding detects a radiation source that is indicated to be at…

A:

Q: 1. This problem concerns the difficulty of directly detecting Earth-like planets.The Bond albedo for…

A: The objective of the question is to calculate the fraction of the total emitted light from the Sun…

Q: Two concentric spheres of diameter D₁ = 0.8 m and D₂ = 1.2 m are separated by an air space and have…

A: Given:D1=0.8 mD2=1.2 mT1=410 KT2=300 Ka Both surface are black, ε1=1; ε2=1b Surfaces are diffuse and…

Q: 3.Determine the total number of view factors that need to be evaluated directly for a 4-surface…

A: Given data: n=4 Need to determine the total number of view factors that need to evaluated directly.

Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.