Calculate the ratio between the wavelength of an electron and a proton, if the proton is moving at half the velocity of the electron (mass of the proton `=1.67xx10^(-27)kg`, mass of the electron`=9.11xx10^(-2)m`.

Calculate the equivalent energy of electrons and proton at rest. Given that mass of electron =9.1xx10^(-31)kg and mass of proton =1.673xx10^(-27)kg .

Calculate the De-Brogile wavelength of an electron and proton if their 10^5 m//s given mass of electron is 9.1 xx 10^(-31) kg (kilogram). Mass of proton 1.67 xx 10^(-27) kg . Plank.s constant h=6.625 xx 10^(-34) JS (Joule Second).

How many protons weight 5kg? The mass of a proton is 1.67xx10^(-27)kg .

Considering the wavelengths of electron and proton to be equal,the ratio of their velocities (v_(e)/(v_(p) would be: (mass of electron =9.1times10^(-31)kg, mass of proton =1.67 times10^(-27)kg

The ratio of the De-Broglie wavelength for the electron and proton moving the same velocity is m_p-Mass of proton, m_e- Mass of electron)

When would the wavlength associated with an electron became equal to that with proton? (Mass of electron =9.1095xx10^(-31)kg," Mass of proton "=1.6725xx10^(-27)kg)

Calculate the de-Bronglie waveelngth for electron and protonif their speed is 10^5 m s^(-1) .Given,mass of an electron =9.1 xx 10^(-31) kg ,mass of proton = 1.67 xx 10^(-27) kg and Planck's constant = 6.62 xx 10^(-34) J s .