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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): Diffraction takes place with all types of waves.
Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.
  • 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 'B'. Can you explain this answer?
Most Upvoted Answer
Directions : In the following questions, A statement of Assertion(A) ...
Assertion (A): Diffraction takes place with all types of waves.
Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.

Explanation:
Diffration and its occurrence:
- Diffraction is the bending or spreading of waves as they pass through an opening or around obstacles.
- It occurs with all types of waves, including light waves, sound waves, water waves, and even matter waves such as electrons.
- When a wave encounters an obstacle or passes through an opening, it bends and spreads out, resulting in diffraction.

Wavelength and Diffraction:
- The wavelength of a wave is the distance between two consecutive points in a wave that are in phase.
- Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.
- In other words, when the size of the opening or obstacle is similar to the wavelength of the wave, significant diffraction occurs.
- The diffraction pattern depends on the ratio of the wavelength of the wave to the size of the opening or obstacle.

Explanation of Assertion and Reason:
- Assertion (A) states that diffraction takes place with all types of waves, which is true.
- Reason (R) states that diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device, which is also true.
- The reason provided in (R) correctly explains why diffraction occurs.

Conclusion:
- Both Assertion (A) and Reason (R) are true.
- Reason (R) is the correct explanation of Assertion (A).
- Therefore, the correct answer is option 'B'.
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Community Answer
Directions : In the following questions, A statement of Assertion(A) ...
Diffraction is the spreading of waves around obstacles. It takes place with all types of waves (mechanical, non-mechanical, transverse, longitudinal) and with very small moving particles (atom, neutron, electron etc.) which show wave-like properties. So, the assertion is true. Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device. The reason is also true. But it does not explain the assertion.
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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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. Can you explain this answer? for Class 12 2025 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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. 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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. 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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. 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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. 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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. 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): Diffraction takes place with all types of waves.Reason (R): Diffraction is perceptible when the wavelength of the wave is comparable to the dimension of the diffracting device.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 'B'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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