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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.
Reason (R): Rutherford could not explain the stability of atoms.
- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is NOT the correct explanation of A
- c)A is true but R is false
- d)A is false and R is true
Correct answer is option 'D'. Can you explain this answer?
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Directions : In the following questions, A statement of Assertion (A)...
According to Rutherford, “the entire positive charge and most of the mass of the atom is concentrated in a small volume called the nucleus, with electrons revolving around the nucleus just as planets revolve around the Sun.” So the assertion is false.
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The electron orbiting around the nucleus radiates energy. As a result, the radius of the orbit continuously decreases and the electrons fall into the nucleus. So, the stability of atoms is not explained. Hence the reason is true.
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Directions : In the following questions, A statement of Assertion (A)...
Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.
Reason (R): Rutherford could not explain the stability of atoms.
The correct answer is option D, which states that Assertion (A) is false and Reason (R) is true.
Explanation:
- The atomic model proposed by Ernest Rutherford is known as the Rutherford model or the planetary model of the atom. According to this model, the atom consists of a small, dense, positively charged nucleus at the center and electrons moving in circular orbits around the nucleus.
Assertion (A) - According to Rutherford, the atomic model, the path of electrons is parabolic:
- The assertion is false. According to the Rutherford model, the path of electrons is not parabolic but circular. The electrons move in circular orbits around the nucleus, similar to the planets orbiting the sun in our solar system.
Reason (R) - Rutherford could not explain the stability of atoms:
- The reason is true. Although the Rutherford model provided a significant advancement in understanding the structure of atoms, it could not explain the stability of atoms. According to classical electromagnetism, an accelerated charged particle should emit electromagnetic radiation and lose energy, resulting in the collapse of the electron orbits. If this were true, atoms would not be stable, and matter as we know it would not exist.
- However, in reality, atoms are stable, and matter is observed to be persistent. This stability of atoms could not be explained by the classical electromagnetic theory, leading to the development of quantum mechanics, which provides a more accurate description of the behavior of electrons in atoms.
In conclusion, the assertion that the path of electrons in the Rutherford model is parabolic is false. Additionally, Rutherford's model could not explain the stability of atoms, which led to the development of quantum mechanics.
Reason (R): Rutherford could not explain the stability of atoms.
The correct answer is option D, which states that Assertion (A) is false and Reason (R) is true.
Explanation:
- The atomic model proposed by Ernest Rutherford is known as the Rutherford model or the planetary model of the atom. According to this model, the atom consists of a small, dense, positively charged nucleus at the center and electrons moving in circular orbits around the nucleus.
Assertion (A) - According to Rutherford, the atomic model, the path of electrons is parabolic:
- The assertion is false. According to the Rutherford model, the path of electrons is not parabolic but circular. The electrons move in circular orbits around the nucleus, similar to the planets orbiting the sun in our solar system.
Reason (R) - Rutherford could not explain the stability of atoms:
- The reason is true. Although the Rutherford model provided a significant advancement in understanding the structure of atoms, it could not explain the stability of atoms. According to classical electromagnetism, an accelerated charged particle should emit electromagnetic radiation and lose energy, resulting in the collapse of the electron orbits. If this were true, atoms would not be stable, and matter as we know it would not exist.
- However, in reality, atoms are stable, and matter is observed to be persistent. This stability of atoms could not be explained by the classical electromagnetic theory, leading to the development of quantum mechanics, which provides a more accurate description of the behavior of electrons in atoms.
In conclusion, the assertion that the path of electrons in the Rutherford model is parabolic is false. Additionally, Rutherford's model could not explain the stability of atoms, which led to the development of quantum mechanics.
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer?
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Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer?.
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Here you can find the meaning of Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.Assertion (A): According to Rutherford, the atomic model, the path of electrons is parabolic.Reason (R): Rutherford could not explain the stability of atoms.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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