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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
Assertion : According to Huygen’s principle, no backward wave-front is possible.
Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.
- a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
- b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
- c)If the Assertion is correct but Reason is incorrect.
- d)If both the Assertion and Reason are incorrect.
Correct answer is option 'B'. Can you explain this answer?
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Directions: These questions consist of two statements, each printed a...
Assertion and Reasoning Questions:
Assertion: According to Huygen’s principle, no backward wave-front is possible.
Reason: Amplitude of secondary wavelet is proportional to (1-cosθ) where θ is the angle between the ray at the point of consideration and the direction of the secondary wavelet.
Explanation:
Huygen’s principle is a fundamental principle in the theory of wave propagation. It states that every point on a wavefront can be considered as a source of secondary waves that spread out in all directions with a speed equal to the speed of the wave. The new wavefront is the envelope of all these secondary waves.
Based on Huygen’s principle, the following can be inferred:
- No backward wave-front is possible: According to Huygen’s principle, every point on a wavefront can be considered as a source of secondary waves. These secondary waves spread out in all directions, including forward and backward. However, the backward wave-front cannot exist because it violates the principle of causality. Causality means that the effect cannot precede the cause. In other words, the backward wave-front would imply that the effect (the wave) is propagating backward in time, which is not possible.
- Amplitude of secondary wavelet is proportional to (1-cosθ): The amplitude of the secondary wavelet depends on the angle θ between the ray at the point of consideration and the direction of the secondary wavelet. The amplitude is maximum when θ=0 (i.e., the ray and the secondary wavelet are parallel) and decreases as θ increases. When θ=π/2 (i.e., the ray and the secondary wavelet are perpendicular), the amplitude is zero. The amplitude is proportional to (1-cosθ).
Therefore, both the Assertion and Reason are correct. However, the Reason is not a correct explanation of the Assertion. The reason explains the amplitude of the secondary wavelet but does not explain why no backward wave-front is possible according to Huygen’s principle.
Hence, the correct answer is option B.
Assertion: According to Huygen’s principle, no backward wave-front is possible.
Reason: Amplitude of secondary wavelet is proportional to (1-cosθ) where θ is the angle between the ray at the point of consideration and the direction of the secondary wavelet.
Explanation:
Huygen’s principle is a fundamental principle in the theory of wave propagation. It states that every point on a wavefront can be considered as a source of secondary waves that spread out in all directions with a speed equal to the speed of the wave. The new wavefront is the envelope of all these secondary waves.
Based on Huygen’s principle, the following can be inferred:
- No backward wave-front is possible: According to Huygen’s principle, every point on a wavefront can be considered as a source of secondary waves. These secondary waves spread out in all directions, including forward and backward. However, the backward wave-front cannot exist because it violates the principle of causality. Causality means that the effect cannot precede the cause. In other words, the backward wave-front would imply that the effect (the wave) is propagating backward in time, which is not possible.
- Amplitude of secondary wavelet is proportional to (1-cosθ): The amplitude of the secondary wavelet depends on the angle θ between the ray at the point of consideration and the direction of the secondary wavelet. The amplitude is maximum when θ=0 (i.e., the ray and the secondary wavelet are parallel) and decreases as θ increases. When θ=π/2 (i.e., the ray and the secondary wavelet are perpendicular), the amplitude is zero. The amplitude is proportional to (1-cosθ).
Therefore, both the Assertion and Reason are correct. However, the Reason is not a correct explanation of the Assertion. The reason explains the amplitude of the secondary wavelet but does not explain why no backward wave-front is possible according to Huygen’s principle.
Hence, the correct answer is option B.
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Directions: These questions consist of two statements, each printed a...
Assertion and Reasoning questions are asked in various competitive exams including NEET. These questions are designed to test the ability of students to comprehend a given concept and to differentiate between correct and incorrect statements. Let us understand the given Assertion and Reasoning and find the correct answer.
Assertion: According to Huygen’s principle, no backward wave-front is possible.
Reason: Amplitude of secondary wavelet is proportional to (1 - cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.
Explanation:
Huygen’s principle is a fundamental principle of wave optics. It states that every point on a wavefront can be considered as a source of secondary wavelets that spread out in all directions with a speed equal to the speed of the wave. These secondary wavelets interfere with each other to form the new wavefront.
Let us analyze the given Assertion and Reasoning statements:
- Assertion states that no backward wave-front is possible according to Huygen’s principle. This means that the wavefront can only propagate forward and cannot go backward. This statement is correct because Huygen’s principle describes the propagation of waves in a forward direction.
- Reasoning states that the amplitude of secondary wavelet is proportional to (1 - cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet. This statement is also correct because the amplitude of the secondary wavelet decreases as the angle between the ray and the direction of secondary wavelet increases. This is because the wavefront is spread over a larger area, resulting in a decrease in the amplitude of the secondary wavelet.
Now, we need to find the correct response based on the given Assertion and Reasoning statements:
a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
Both the Assertion and Reasoning statements are correct, but the Reasoning statement does not provide a correct explanation of the Assertion statement. Hence, this option is incorrect.
b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
This option is correct as both the Assertion and Reasoning statements are correct, but the Reasoning statement does not provide a correct explanation of the Assertion statement.
c) If the Assertion is correct but Reason is incorrect.
This option is incorrect because both the Assertion and Reasoning statements are correct.
d) If both the Assertion and Reason are incorrect.
This option is incorrect because both the Assertion and Reasoning statements are correct.
Therefore, the correct answer is option B - If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
Assertion: According to Huygen’s principle, no backward wave-front is possible.
Reason: Amplitude of secondary wavelet is proportional to (1 - cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.
Explanation:
Huygen’s principle is a fundamental principle of wave optics. It states that every point on a wavefront can be considered as a source of secondary wavelets that spread out in all directions with a speed equal to the speed of the wave. These secondary wavelets interfere with each other to form the new wavefront.
Let us analyze the given Assertion and Reasoning statements:
- Assertion states that no backward wave-front is possible according to Huygen’s principle. This means that the wavefront can only propagate forward and cannot go backward. This statement is correct because Huygen’s principle describes the propagation of waves in a forward direction.
- Reasoning states that the amplitude of secondary wavelet is proportional to (1 - cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet. This statement is also correct because the amplitude of the secondary wavelet decreases as the angle between the ray and the direction of secondary wavelet increases. This is because the wavefront is spread over a larger area, resulting in a decrease in the amplitude of the secondary wavelet.
Now, we need to find the correct response based on the given Assertion and Reasoning statements:
a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
Both the Assertion and Reasoning statements are correct, but the Reasoning statement does not provide a correct explanation of the Assertion statement. Hence, this option is incorrect.
b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
This option is correct as both the Assertion and Reasoning statements are correct, but the Reasoning statement does not provide a correct explanation of the Assertion statement.
c) If the Assertion is correct but Reason is incorrect.
This option is incorrect because both the Assertion and Reasoning statements are correct.
d) If both the Assertion and Reason are incorrect.
This option is incorrect because both the Assertion and Reasoning statements are correct.
Therefore, the correct answer is option B - If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer?
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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer?.
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Here you can find the meaning of Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : According to Huygen’s principle, no backward wave-front is possible.Reason : Amplitude of secondary wavelet is proportional to (1 + cos θ) where θ is the angle between the ray at the point of consideration and the direction of secondary wavelet.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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