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An electron and a proton are detected in...

An electron and a proton are detected in a cosmic ray experiment, the first with kinetic energy 10 keV, and the second with 100 keV. Which is faster, the electron or the proton ? Obtain the ratio of their speeds.
(Electron mass `=9.11xx10^(-31) kg`, proton mass `=1.67xx10^(-27) kg, 1 eV=1.60xx10^(-19) J)`.

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The electron is faster, `v_(e )"/"v_(p)= 13.5`
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An electron and proton are detected in a cosmic ray experiment, the first with kinetic energy 10 KeV and the second with 100 KeV. Which is faster, the electron or the proton? Obtain the ratio of their speeds (electron mass : 9.11 xx 10^(-31)kg : proton mass : 1.67xx 10^(-27) kg : 1 e v = 1.6 xx 10^(-19) J)

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Calculate the kinetic energy of a moving electron which has a wavelength of 4.8 pm. [mass of electron = 9.11 xx 10^(-31) kg, h = 6.626 xx 10^(-34) Kg m^2s^(-1) ].

A moving electron has 4.55 xx 10^(-25) joules of kinetic energy. Calculate its wavelength (mass = 9.1 xx 10^(-31) kg and h = 6.626 xx 10^(-34) kg m^2 s^(-1) ).

A. What is de Broglie hypothesis? B. Write the formula for de Broglie wavelength. C. Calculate de Broglie wavelength associated with an electron accelerated by a potential difference of 100 volts. Given mass of the electron =9.1xx10^(-31)kg, h=6.634xx10^(-34)JS, 1 eV=1.6xx10^(-19)J

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