Suppose that the particle tn Exercise in is an electron project with velocity `v_x=2.0x10^6m//s`. If E between the plates separated by 0.5 cm is `9.1x10^2N//C`, where will the electron strike the upper plate ?
`[e=1.6x10^(-19)C,m_e=9.1x10^(-31)kg]`

Calculate the de Broglie wavelength associated with an electron moving with velocity of 1.0xx10^(7)m//s . (mass of an electron: 9.1xx10^(-31)kg )

In an atom, an electron is moving with a speed at 600 m/s with an accuracy of 0.005% certainty with which the position of the electron can be located is (h=6.6xx10^(-34)kg*m^(2)*s^(-1)," mass of electron, "m_(e)=9.1xx10^(-31)kg) -

Find the wavelength of an electron having kinetic energy 10 eV. (h = 6.33 xx 10^(-34) J.s, m_(e) = 9 xx 10^(-31) kg)

An electron revolves along a circular path on a plane perpendicular to a uniform magnetic field of 0.001 T with a velocity of 10^(6)m.s^(-1) . (i) What is the force acting on the electron? (ii) What is the radius of its circular path? (iii) For each complete revolution of the electron what will be the increase of its energy? Given, charge of an electron =-1.6xx10^(-1)C mass =9.1xx10^(-31)kg .

Calculate the voltage needed to balance on oil drop carrying 10 electron, when located between the plates of capacitor, which are 5 mm apart.Given, mass of drop = 3xx10^(-16)kg , charge on electron= 1.6xx10^(-19)C and g = 9.8 m/s^2 .

Calculate the wave length of wave associated -with an electron moving with the velocity 1.55 xx 10^6 ms^(-1) [h = 6.63 xx 10^(-34) J.S , m_e = 9.109 xx 10^(-31) kg] .

Coulomb’s law for electrostatic force between two point charges and Newton’s Law of gravitational force between masses depends on the distance between the charges/ masses. (b) Estimate the accelerations of electron and proton due to the electrical force of their mutual attraction when they are 1overset@A(=10^(-10)m) apart? (m_p=1.67x10^(-27)kg,m_e=9.11x10^(-31)kg)

Calculate the uncertainty in the position of an electron if the uncertainty in its velocity is 5.7 xx 10^5 m//sec (h = 6.626 xx 10^(-34) kg m^2 s^(-1) , mass of the electron = 9.1 xx 10^(−31) kg ).

When ultraviolet rays of wavelength 620 Å is incident on a hydrogen atom in the ground state, its electron is emitted with a velocity of 1.5 xx10^(6) m *s^(-1) . What is the ionisation energy of hydrogen ? Given , h= 6.625xx10^(-34)J *s , mass of electron = 9.1 xx 10^(-31)kg, c=3xx 10^(8)m*s^(-1) and 1 eV=1.6xx 10^(-19)J .

Angular momentum of an electron in an orbit hydrogen atom is 4.2xx10^(-34) J*s . What is the energy of that electron in that orbit? Given mass of an electron = 9.1xx10^(-31)kg ,e=1.6xx10^(-19)C,1eV=1.6xx10^(-19) erg .