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Ratio of the wavelength of a photon to that of an electron of the same energy E (expression)

The same question, asked 2 times: 3 May 2023 S1, 11 Apr 2026 S2. Every wording below, oldest first.

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  1. Question 1

    3 May 2023 S1

    11
    The ratio of the wavelength of a photon of energy 'E' to that of the electron of same energy is (m=m= mass of an electron, c=c= speed of light, h=h= Planck's constant)

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  2. Question 2

    11 Apr 2026 S2

    145
    According to de-Broglie hypothesis, the ratio of the wave-length of a photon and that of an electron having same energy 'E' is (m = mass of electron, c = velocity of light)

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