356374
The Rutherford \(\alpha\)-particle experiment shows that most of the \(\alpha\)-particles pass through almost unscattered. While some are scattered through large angles. What information does it give about the structure of the atom?
1 Atom is hollow.
2 The whole mass of the atom is concentrated in a small centre called nucleus.
3 Nucleus is positively charged.
4 All of the above.
Explanation:
All the options given are the conclusion of the experiment.
PHXII12:ATOMS
356375
Assertion : In experiment by Rutherford used \(\alpha\)-particles for scattering. Reason : The force of repulsion between atomic nucleus and \(\alpha\)-particle varies with distance according to inverse square law.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Rutherford used \(\alpha\)-particles for scattering experiments. Rutherford confirmed that the repulsive force on \(\alpha\)-particle due to nucleus varies with distance as per inverse square law and so positive charges are concentrated at the centre (not distributed throughout the atom). So correct option is (2).
356374
The Rutherford \(\alpha\)-particle experiment shows that most of the \(\alpha\)-particles pass through almost unscattered. While some are scattered through large angles. What information does it give about the structure of the atom?
1 Atom is hollow.
2 The whole mass of the atom is concentrated in a small centre called nucleus.
3 Nucleus is positively charged.
4 All of the above.
Explanation:
All the options given are the conclusion of the experiment.
PHXII12:ATOMS
356375
Assertion : In experiment by Rutherford used \(\alpha\)-particles for scattering. Reason : The force of repulsion between atomic nucleus and \(\alpha\)-particle varies with distance according to inverse square law.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Rutherford used \(\alpha\)-particles for scattering experiments. Rutherford confirmed that the repulsive force on \(\alpha\)-particle due to nucleus varies with distance as per inverse square law and so positive charges are concentrated at the centre (not distributed throughout the atom). So correct option is (2).
356374
The Rutherford \(\alpha\)-particle experiment shows that most of the \(\alpha\)-particles pass through almost unscattered. While some are scattered through large angles. What information does it give about the structure of the atom?
1 Atom is hollow.
2 The whole mass of the atom is concentrated in a small centre called nucleus.
3 Nucleus is positively charged.
4 All of the above.
Explanation:
All the options given are the conclusion of the experiment.
PHXII12:ATOMS
356375
Assertion : In experiment by Rutherford used \(\alpha\)-particles for scattering. Reason : The force of repulsion between atomic nucleus and \(\alpha\)-particle varies with distance according to inverse square law.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Rutherford used \(\alpha\)-particles for scattering experiments. Rutherford confirmed that the repulsive force on \(\alpha\)-particle due to nucleus varies with distance as per inverse square law and so positive charges are concentrated at the centre (not distributed throughout the atom). So correct option is (2).
