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

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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: 0.3 0.1 3. 7.

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

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

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

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

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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: 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 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…

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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…

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.