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Heat treatment of muscular pain involves...

Heat treatment of muscular pain involves radiation of wavelength of about 900nm. Which spectral line of H-atom is suitable for this purpose? `[R_H=1xx10^5 cm^(-1), h=6.6xx10^(-34) Js, c=3xx10^8 ms^(-1) ]`

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Heat treatment of muscular pain involves rediation of wavelenght of about 900 nm.Which spectral line of H-atom is suitable for this purpose ? [R_H=1xx 10^5 cm^-1,h = 6.6 xx 10 ^- 34 Js , c=3 xx 10 ^8 ms^-1]

What is the wavelength of light . Given energy =3.03xx10^(-19)J, h=6.6xx10^(-34)JS, c=3.0xx10^(8)m//s ?

The threshold wavelength of Na element is 6800 Å.Its work function is ………. xx10^(-19)J.(h=6.625xx10^(-34)Js,C=3xx10^(8)ms^(-1))

If a light of wavelength 4950 Å is viewed as a continuous flow of photons, what is the energy of each photon in eV ? (Given h = 6.6 xx 10^(-34) "Js, c =" 3 xx 10^(8) ms^(-1) )

A 600 W mercury lamp emits monochromatic radiation of wavelength 331.3 nm. How many photons are emitted from the lamp per second? (h =6.626 xx10^(-34)" Js, velocity of light "=3xx10^(8)ms^(-1))

Calculate the momentum of a photon of frequency 5 xx 10^(13) Hz .Given, h = 6.6 xx 10^(-34)J.s and c = 3 xx 10^(8) m.s^(-1)

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