S UV N³ N UV

Q: Sakalam, a light-emitting device, requires 6917.82 ZW (Zeptowatt) of power every 500 milliseconds…

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Q: Itravió- Ultraviolet radiation. There are two categories of ultravio- let light. Ultraviolet A (UVA)…

A: Given: wavelength range of UVA λA=(320-400) nm wavelength range of UVB λB=(280 - 320 ) nm

Q: Q3. Calculate the following for an industrial furnace in the form of a black body and emitting…

A: Given: Surface Temperature: T=3500° [C] =3773.15 [K]

Q: Which of the following statements is TRUE? SELECT ALL THAT APPLY A) Red light has a longer…

A: We know, Energy of a photon is given as, E = hv h is the plank's constant v is the frequency.

Q: The total power radiated per unit area from a blackbody is 78.0 MW/m2. Find (a) the temperature of…

A: Power per unit area, P  = 78 MW/m2

Q: The surface temperature of the sun is about 6000K. Accordingly, which wavelength corresponds to the…

A: Data Given ,  Surface temperature of the sun ( T ) = 6000 K We have to find out the wavelength ( λ )…

Q: Which of the following is false about light?

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

Q: Define absorption coefficient?

A: We know that, Absorption coefficient : When light passes through a given substance then the…

Q: Global Radiation is Select one: a. Direct Radiation x Diffuse Radiation. b. Direct Radiation /…

A: The total short wave radiation falling on a horizontal surface from the sky is called Global…

Q: he surface temperature of the Sun is 5000℃. a) Find the magnitude of the peak wavelength of…

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Q: What is the Kelvin–Planck expression of the second law of thermodynamics?

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Q: you are sitting at a desk in a completely dark room. the room is at normal indoor room temperature.…

A: Assume the room temprerature is standard 20°C or 293 K

Q: A white star that has a surface temperature (in kelvins) that is four times that of our sun the…

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Q: 19 If we plot a graph between frequency of light used and maximum K.E of photoelectrons it will be a…

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Q: Water absorbs infrared radiation with wavelengths near 4.55 mm. Suppose this radiation is absorbed…

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Q: A healthy person has a body temperature of 98.6°. Use the properties of blackbody radiation to work…

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Q: State following statements whether TRUE or FALSE. iv. Upon heating, objects begin to emit visible…

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Q: What are the two very significant statements or corollaries of Max Planck regarding all types

A: Given:- What are the two very significant statements or corollaries of Max Planck regarding all…

Q: Q1: A nuclear bomb at the instant of explosion may be approximated to a blackbody of rad 1.3 m with…

A: Radius of black body = 1.3 m  Surface temperature = 10000000 kelvin

Q: The resolution of temperature sensor, which have ability to read the following data (0.1, О.2, 0.3,…

A: A temperature sensor have the ability to read the following temperatures (in degree celsius) 0.1,…

Q: A blackbody radiator (none of the choices) does not absorb thermal radiation. emits radiation only…

A: First option is correct.

Q: An ideal blackbody... A. Emits all wavelengths of radiation. B. Absorbs all wavelengths of…

A: We know : A. Blackbody emits Radiation of all wavelengths with different intensities and as the…

Q: 16. Microwaves and x-rays use what kind of energy? ® kinetic potential thermal radiant 17. What is…

A: 16.Microwave and x-rays are radiant energy. i.e it's originated from radiation emits by matter and…

Q: The blackbody radiation emitted from a furnace peak at a wavelength of 5.0  10-6 m (0.0000050 m).…

A: Given data λ=5×10-6 m

Q: The Temperature of a blackbody increases from 200∘∘C to 400∘∘C. What is the change in the…

A: Intial temperature of blackbody (Ti) = 200oC Final temperature of blackbody (Tf) = 400oC

Q: If an object is twice the temperature of another object, how will its wavelength of peak emission…

A: According to Wein's law, λpeak*T = constant If temperature of one body is twice that of the other…

Q: The surface temperature of a hot body is 1227 degree C . Find the wavelength at which it radiates…

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Q: Describe how photons of light can be produced in a hot gas.

A: We are given a hot gas

Q: Sakalam, a light-emitting device, requires 10,068.68 ZW (Zeptowatt) of power every 500 milliseconds…

A: Required : Energy, Wavelength, Color of the LED.

Q: An incandescent lightbulb is desired to emit at least 15 percent of its energy at wavelengths…

A: The wavelength range of the light is considered from 0.0 mm to 0.8 mm.   The given values are,

Q: QI: A nuclear bomb at the instant of explosion may be approximated to a blackbody of radius 1.3 m…

A: Radius of black body (R) = 1.3 m Surface temperature of blackbody (T) = 107 kelvin

Q: Water is exposed to infrared radiation of wavelength 2.8x10^-4 cm. Assume that all the radiation is…

A: The wavelength of infrared radiation,(λ)=2.8 x 10-4 cm=2.8 x 10-6 m -----(1) [Given] [Using 1…

Q: Below graph represents the intensity of X ray versus wavelength for Coolidge tube. 2 is minimum…

A: To determine : whether the wavelength increases or decreases

Q: Define ultraviolet radiation

A: The portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of…

Q: Converts dissipated energy to signal (heat) is an advantage of using a Fourier-Transform IR…

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Q: What is the wavelength of an electron moving at 1.5 %of the speed of light? Use nonrelativistic…

A: To determine,The wavelength of an electron moving at 1.5% of the speed of light.given,spped of…

Q: Find the wavelength of peak intensity for a 6200 K object that emits thermal radiation.

A: Given information:Temperature of the object (T) = 6200 K

Q: photoelectric effect

A: Solution

Q: 10. Of the available choices, the color most energetic. has the shortest wavelength and is the a.…

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Q: One of the following is not an application of photoelectric effect. O a. in chromatiser O b. in…

A: photo electric effect : the emission of electrons  from a metal surface when light is incident on it…

Q: Greenhouse gases like CO2 trap the outgoing thermal radiation from the surface that cools the Earth,…

A: As carbon dioxide level increases the increased radiation from the warmer surface on Earth balances…

Q: Q1 Find the total energy and the greatest wavelength of the energy emitted from the surface of the…

A: Find the total energy of the sun emitted from the surface. E=σT4=5.67×10-8 W/m2100 K4=5.67 W/m2

Q: The photoelectric effect can be understood on the basis of a. the electromagnetic theory of light b.…

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Q: Explain the basic principle of photoelectron spectroscopy

A: The study of spectroscopy of the emission of electrons by photoelectric effect is known as…