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Statement 1 - An electron in a circular orbit experiences acceleration and, as a result, radiates energy, leading to a loss of energy over time.
Statement 2 - This energy loss would cause the electron to spiral into the nucleus, making atoms inherently unstable.
Statement 2 - This energy loss would cause the electron to spiral into the nucleus, making atoms inherently unstable.
Which of the statements given above is/are correct?
- a)1 Only
- b)Both 1 and 2
- c)2 Only
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Statement 1 - An electron in a circular orbit experiences acceleration...
According to the Bohr model of the atom, electrons move in fixed orbits with specific quantized energy levels and do not radiate energy while in these orbits.
This contradicts classical physics, which suggested that an accelerating electron in a circular orbit would radiate energy and eventually spiral into the nucleus.
Thus, Statement 1 is incorrect as per the Bohr model, which states that electrons in stable orbits do not emit radiation.
Statement 2 is correct as it accurately describes the classical physics implication of energy loss causing electrons to spiral into the nucleus, but this scenario does not occur in stable atoms due to the principles introduced by Bohr.
Therefore, only Statement 2 is correct.
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Most Upvoted Answer
Statement 1 - An electron in a circular orbit experiences acceleration...
Understanding the Statements
Statement 1 asserts that an electron in a circular orbit experiences acceleration and radiates energy. This is indeed true according to classical electromagnetism. When an electron moves in a circular path, it experiences centripetal acceleration, which leads to the emission of electromagnetic radiation, causing a loss of energy over time.
Statement 2 claims that this energy loss would result in the electron spiraling into the nucleus, making atoms inherently unstable. While it is true that classical physics predicts this behavior, it does not hold in quantum mechanics. The Bohr model of the atom introduces quantized energy levels that prevent electrons from spiraling into the nucleus.
Analysis of the Statements
- Statement 1 is correct:
- Electrons in circular motion indeed experience acceleration.
- They radiate energy due to this acceleration.
- Statement 2 is incorrect:
- Quantum mechanics explains that electrons occupy stable orbits without spiraling into the nucleus.
- Atoms are stable due to quantization of energy levels, which prevents energy loss in the way classical physics suggests.
Conclusion
Since Statement 1 is correct and Statement 2 is incorrect, the correct answer to the question is option 'C': 2 Only. The reasoning behind the conclusion lies in the transition from classical to quantum physics, which provides a more accurate depiction of atomic behavior.
Statement 1 asserts that an electron in a circular orbit experiences acceleration and radiates energy. This is indeed true according to classical electromagnetism. When an electron moves in a circular path, it experiences centripetal acceleration, which leads to the emission of electromagnetic radiation, causing a loss of energy over time.
Statement 2 claims that this energy loss would result in the electron spiraling into the nucleus, making atoms inherently unstable. While it is true that classical physics predicts this behavior, it does not hold in quantum mechanics. The Bohr model of the atom introduces quantized energy levels that prevent electrons from spiraling into the nucleus.
Analysis of the Statements
- Statement 1 is correct:
- Electrons in circular motion indeed experience acceleration.
- They radiate energy due to this acceleration.
- Statement 2 is incorrect:
- Quantum mechanics explains that electrons occupy stable orbits without spiraling into the nucleus.
- Atoms are stable due to quantization of energy levels, which prevents energy loss in the way classical physics suggests.
Conclusion
Since Statement 1 is correct and Statement 2 is incorrect, the correct answer to the question is option 'C': 2 Only. The reasoning behind the conclusion lies in the transition from classical to quantum physics, which provides a more accurate depiction of atomic behavior.
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Solutions for Statement 1 - An electron in a circular orbit experiences acceleration and, as a result, radiates energy, leading to a loss of energy over time.Statement 2 - This energy loss would cause the electron to spiral into the nucleus, making atoms inherently unstable.Which of the statements given above is/are correct?a)1 Onlyb)Both 1 and 2c)2 Onlyd)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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