Alpha Particle Scattering and Rutherford’s Nuclear Model of Atom
PHXII12:ATOMS

356357 The scientist who is credited with the discovery of ‘nucleus’ in an atom is

1 Niels Bohr
2 Rutherford
3 J.J.Thomson
4 Balmer
PHXII12:ATOMS

356358 The angular momentum of the \(\alpha \)-particles which are scattered through large angles by the heavier nuclei is conserved because of the

1 Nature of repulsive forces
2 Conservation of kinetic energy
3 Conservation of potential energy
4 There is no external torque
PHXII12:ATOMS

356359 If a cathod ray tube has a potential difference \(V\) volt between the cathode and anode, then the speed \(v\) of cathode rays is given by

1 \(v \propto \sqrt V \)
2 \(v \propto {V^2}\)
3 \(v \propto V\)
4 \(v \propto {V^{ - 1}}\)
PHXII12:ATOMS

356360 In a Rutherford scattering experiment when a projectile of charge \({Z_1}\) and mass \({M_1}\) approaches a target nucleus of charge \({Z_2}\) and mass \({M_2},\) the distance of closest approach is \({r_0}.\)The energy of the projectile is

1 Directly proportional to \({Z_1}{Z_2}\)
2 Directly proportional to \({M_1} \times {M_2}\)
3 Directly proportional to mass \({M_1}\)
4 Inversely proportional to \({Z_1}\)
PHXII12:ATOMS

356361 Read the Statement - A and Statement - B carefully to mark the correct options given below.
Statement A :
Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford’s model.
Statement B :
An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford’s model.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
PHXII12:ATOMS

356357 The scientist who is credited with the discovery of ‘nucleus’ in an atom is

1 Niels Bohr
2 Rutherford
3 J.J.Thomson
4 Balmer
PHXII12:ATOMS

356358 The angular momentum of the \(\alpha \)-particles which are scattered through large angles by the heavier nuclei is conserved because of the

1 Nature of repulsive forces
2 Conservation of kinetic energy
3 Conservation of potential energy
4 There is no external torque
PHXII12:ATOMS

356359 If a cathod ray tube has a potential difference \(V\) volt between the cathode and anode, then the speed \(v\) of cathode rays is given by

1 \(v \propto \sqrt V \)
2 \(v \propto {V^2}\)
3 \(v \propto V\)
4 \(v \propto {V^{ - 1}}\)
PHXII12:ATOMS

356360 In a Rutherford scattering experiment when a projectile of charge \({Z_1}\) and mass \({M_1}\) approaches a target nucleus of charge \({Z_2}\) and mass \({M_2},\) the distance of closest approach is \({r_0}.\)The energy of the projectile is

1 Directly proportional to \({Z_1}{Z_2}\)
2 Directly proportional to \({M_1} \times {M_2}\)
3 Directly proportional to mass \({M_1}\)
4 Inversely proportional to \({Z_1}\)
PHXII12:ATOMS

356361 Read the Statement - A and Statement - B carefully to mark the correct options given below.
Statement A :
Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford’s model.
Statement B :
An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford’s model.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
PHXII12:ATOMS

356357 The scientist who is credited with the discovery of ‘nucleus’ in an atom is

1 Niels Bohr
2 Rutherford
3 J.J.Thomson
4 Balmer
PHXII12:ATOMS

356358 The angular momentum of the \(\alpha \)-particles which are scattered through large angles by the heavier nuclei is conserved because of the

1 Nature of repulsive forces
2 Conservation of kinetic energy
3 Conservation of potential energy
4 There is no external torque
PHXII12:ATOMS

356359 If a cathod ray tube has a potential difference \(V\) volt between the cathode and anode, then the speed \(v\) of cathode rays is given by

1 \(v \propto \sqrt V \)
2 \(v \propto {V^2}\)
3 \(v \propto V\)
4 \(v \propto {V^{ - 1}}\)
PHXII12:ATOMS

356360 In a Rutherford scattering experiment when a projectile of charge \({Z_1}\) and mass \({M_1}\) approaches a target nucleus of charge \({Z_2}\) and mass \({M_2},\) the distance of closest approach is \({r_0}.\)The energy of the projectile is

1 Directly proportional to \({Z_1}{Z_2}\)
2 Directly proportional to \({M_1} \times {M_2}\)
3 Directly proportional to mass \({M_1}\)
4 Inversely proportional to \({Z_1}\)
PHXII12:ATOMS

356361 Read the Statement - A and Statement - B carefully to mark the correct options given below.
Statement A :
Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford’s model.
Statement B :
An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford’s model.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
PHXII12:ATOMS

356357 The scientist who is credited with the discovery of ‘nucleus’ in an atom is

1 Niels Bohr
2 Rutherford
3 J.J.Thomson
4 Balmer
PHXII12:ATOMS

356358 The angular momentum of the \(\alpha \)-particles which are scattered through large angles by the heavier nuclei is conserved because of the

1 Nature of repulsive forces
2 Conservation of kinetic energy
3 Conservation of potential energy
4 There is no external torque
PHXII12:ATOMS

356359 If a cathod ray tube has a potential difference \(V\) volt between the cathode and anode, then the speed \(v\) of cathode rays is given by

1 \(v \propto \sqrt V \)
2 \(v \propto {V^2}\)
3 \(v \propto V\)
4 \(v \propto {V^{ - 1}}\)
PHXII12:ATOMS

356360 In a Rutherford scattering experiment when a projectile of charge \({Z_1}\) and mass \({M_1}\) approaches a target nucleus of charge \({Z_2}\) and mass \({M_2},\) the distance of closest approach is \({r_0}.\)The energy of the projectile is

1 Directly proportional to \({Z_1}{Z_2}\)
2 Directly proportional to \({M_1} \times {M_2}\)
3 Directly proportional to mass \({M_1}\)
4 Inversely proportional to \({Z_1}\)
PHXII12:ATOMS

356361 Read the Statement - A and Statement - B carefully to mark the correct options given below.
Statement A :
Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford’s model.
Statement B :
An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford’s model.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
PHXII12:ATOMS

356357 The scientist who is credited with the discovery of ‘nucleus’ in an atom is

1 Niels Bohr
2 Rutherford
3 J.J.Thomson
4 Balmer
PHXII12:ATOMS

356358 The angular momentum of the \(\alpha \)-particles which are scattered through large angles by the heavier nuclei is conserved because of the

1 Nature of repulsive forces
2 Conservation of kinetic energy
3 Conservation of potential energy
4 There is no external torque
PHXII12:ATOMS

356359 If a cathod ray tube has a potential difference \(V\) volt between the cathode and anode, then the speed \(v\) of cathode rays is given by

1 \(v \propto \sqrt V \)
2 \(v \propto {V^2}\)
3 \(v \propto V\)
4 \(v \propto {V^{ - 1}}\)
PHXII12:ATOMS

356360 In a Rutherford scattering experiment when a projectile of charge \({Z_1}\) and mass \({M_1}\) approaches a target nucleus of charge \({Z_2}\) and mass \({M_2},\) the distance of closest approach is \({r_0}.\)The energy of the projectile is

1 Directly proportional to \({Z_1}{Z_2}\)
2 Directly proportional to \({M_1} \times {M_2}\)
3 Directly proportional to mass \({M_1}\)
4 Inversely proportional to \({Z_1}\)
PHXII12:ATOMS

356361 Read the Statement - A and Statement - B carefully to mark the correct options given below.
Statement A :
Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford’s model.
Statement B :
An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford’s model.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.