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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.
Reason : Most of the space in the atom is empty.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'B'. Can you explain this answer?
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Direction: In the following questions, a statement of assertion (A) i...
The positive charge has to be concentrated in a very small volume (nucleus) that repelled and deflected the positively charged α -particles.
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Direction: In the following questions, a statement of assertion (A) i...
Assertion (A): A few positively charged alpha particles are deflected in Rutherford's experiment.
Reason (R): Most of the space in the atom is empty.
Explanation:
In Rutherford's experiment, alpha particles were bombarded onto a thin gold foil. According to the prevailing 'plum pudding' model of the atom, it was believed that the positive charge and mass of the atom were uniformly distributed throughout the atom. In this model, it was expected that the alpha particles would pass straight through the foil with minimal deflection.
However, the actual results of the experiment showed that some of the alpha particles were deflected at large angles or even bounced back. This observation led Rutherford to propose a new model of the atom, known as the nuclear model. In this model, he suggested that the positive charge and most of the mass of the atom are concentrated in a tiny, dense nucleus at the center, while the electrons orbit the nucleus.
Assertion (A) is true because in Rutherford's experiment, a few alpha particles were indeed deflected from their initial paths.
Reason (R) is also true because the deflection of alpha particles in Rutherford's experiment provided evidence for the existence of a tiny, dense nucleus within the atom. This implies that most of the space within the atom is empty, with the electrons occupying a relatively large volume compared to the nucleus.
Reason (R) is the correct explanation of assertion (A) because the deflection of alpha particles can be attributed to the repulsive electrostatic forces between the positively charged alpha particles and the positively charged nucleus. Since most of the space in the atom is empty, the chances of an alpha particle coming close to the nucleus and experiencing a significant deflection are relatively low.
Therefore, the correct answer is option B - Both assertion (A) and reason (R) are true, but reason (R) is not the correct explanation of assertion (A).
Reason (R): Most of the space in the atom is empty.
Explanation:
In Rutherford's experiment, alpha particles were bombarded onto a thin gold foil. According to the prevailing 'plum pudding' model of the atom, it was believed that the positive charge and mass of the atom were uniformly distributed throughout the atom. In this model, it was expected that the alpha particles would pass straight through the foil with minimal deflection.
However, the actual results of the experiment showed that some of the alpha particles were deflected at large angles or even bounced back. This observation led Rutherford to propose a new model of the atom, known as the nuclear model. In this model, he suggested that the positive charge and most of the mass of the atom are concentrated in a tiny, dense nucleus at the center, while the electrons orbit the nucleus.
Assertion (A) is true because in Rutherford's experiment, a few alpha particles were indeed deflected from their initial paths.
Reason (R) is also true because the deflection of alpha particles in Rutherford's experiment provided evidence for the existence of a tiny, dense nucleus within the atom. This implies that most of the space within the atom is empty, with the electrons occupying a relatively large volume compared to the nucleus.
Reason (R) is the correct explanation of assertion (A) because the deflection of alpha particles can be attributed to the repulsive electrostatic forces between the positively charged alpha particles and the positively charged nucleus. Since most of the space in the atom is empty, the chances of an alpha particle coming close to the nucleus and experiencing a significant deflection are relatively low.
Therefore, the correct answer is option B - Both assertion (A) and reason (R) are true, but reason (R) is not the correct explanation of assertion (A).
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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?
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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?.
Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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Here you can find the meaning of Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : A few positively charged a -particles are deflected in Rutherford’s experiment.Reason : Most of the space in the atom is empty.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 9 tests.
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