03. Uncertainty Principle
Structure of Atom

238833 Given : The mass of electron is 9.11×1031 kg. Planck constant is 6.626×1034Js, the uncertainty involved in the measurement of velocity within a distance of 0.1\AA\AA˙ is

1 5.79×105 m s1
2 5.79×106 m s1
3 5.79×107 m s1
4 5.79×108 m s1
Structure of Atom

238834 The uncertainty in momentum of an electron is 1×105 kg m/s. The uncertainty in its position will be (h=6.62×1034 kg m2/s)

1 5.27×1030 m
2 1.05×1026 m
3 1.05×1028 m
4 5.25×1028 m
Structure of Atom

238836 Uncertainty in position of an electron (mass = 9.1×1028 g) moving with a velocity of 3×104 cm/s accurate upto 0.001% will be
(use h/(4π) in uncertainity expression where h =6.626×1027 erg second)

1 5.76 cm
2 7.68 cm
3 1.93 cm
4 3.84 cm
Structure of Atom

238837 If Ee,Eα and Ep represent the kinetic energies of an electron, α-particle and a proton respectively each moving with same de-Broglie wavelength then

1 Ee=Eα=Ep
2 Ee>Eα>Ep
3 Eα>Ep>Ee
4 Ee>Ep>Eα
Structure of Atom

238833 Given : The mass of electron is 9.11×1031 kg. Planck constant is 6.626×1034Js, the uncertainty involved in the measurement of velocity within a distance of 0.1\AA\AA˙ is

1 5.79×105 m s1
2 5.79×106 m s1
3 5.79×107 m s1
4 5.79×108 m s1
Structure of Atom

238834 The uncertainty in momentum of an electron is 1×105 kg m/s. The uncertainty in its position will be (h=6.62×1034 kg m2/s)

1 5.27×1030 m
2 1.05×1026 m
3 1.05×1028 m
4 5.25×1028 m
Structure of Atom

238836 Uncertainty in position of an electron (mass = 9.1×1028 g) moving with a velocity of 3×104 cm/s accurate upto 0.001% will be
(use h/(4π) in uncertainity expression where h =6.626×1027 erg second)

1 5.76 cm
2 7.68 cm
3 1.93 cm
4 3.84 cm
Structure of Atom

238837 If Ee,Eα and Ep represent the kinetic energies of an electron, α-particle and a proton respectively each moving with same de-Broglie wavelength then

1 Ee=Eα=Ep
2 Ee>Eα>Ep
3 Eα>Ep>Ee
4 Ee>Ep>Eα
Structure of Atom

238833 Given : The mass of electron is 9.11×1031 kg. Planck constant is 6.626×1034Js, the uncertainty involved in the measurement of velocity within a distance of 0.1\AA\AA˙ is

1 5.79×105 m s1
2 5.79×106 m s1
3 5.79×107 m s1
4 5.79×108 m s1
Structure of Atom

238834 The uncertainty in momentum of an electron is 1×105 kg m/s. The uncertainty in its position will be (h=6.62×1034 kg m2/s)

1 5.27×1030 m
2 1.05×1026 m
3 1.05×1028 m
4 5.25×1028 m
Structure of Atom

238836 Uncertainty in position of an electron (mass = 9.1×1028 g) moving with a velocity of 3×104 cm/s accurate upto 0.001% will be
(use h/(4π) in uncertainity expression where h =6.626×1027 erg second)

1 5.76 cm
2 7.68 cm
3 1.93 cm
4 3.84 cm
Structure of Atom

238837 If Ee,Eα and Ep represent the kinetic energies of an electron, α-particle and a proton respectively each moving with same de-Broglie wavelength then

1 Ee=Eα=Ep
2 Ee>Eα>Ep
3 Eα>Ep>Ee
4 Ee>Ep>Eα
Structure of Atom

238833 Given : The mass of electron is 9.11×1031 kg. Planck constant is 6.626×1034Js, the uncertainty involved in the measurement of velocity within a distance of 0.1\AA\AA˙ is

1 5.79×105 m s1
2 5.79×106 m s1
3 5.79×107 m s1
4 5.79×108 m s1
Structure of Atom

238834 The uncertainty in momentum of an electron is 1×105 kg m/s. The uncertainty in its position will be (h=6.62×1034 kg m2/s)

1 5.27×1030 m
2 1.05×1026 m
3 1.05×1028 m
4 5.25×1028 m
Structure of Atom

238836 Uncertainty in position of an electron (mass = 9.1×1028 g) moving with a velocity of 3×104 cm/s accurate upto 0.001% will be
(use h/(4π) in uncertainity expression where h =6.626×1027 erg second)

1 5.76 cm
2 7.68 cm
3 1.93 cm
4 3.84 cm
Structure of Atom

238837 If Ee,Eα and Ep represent the kinetic energies of an electron, α-particle and a proton respectively each moving with same de-Broglie wavelength then

1 Ee=Eα=Ep
2 Ee>Eα>Ep
3 Eα>Ep>Ee
4 Ee>Ep>Eα