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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 : Tyndall effect is an optical property.
Reason : Electrophoresis is an electrical property.
  • 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, but (R) is true.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Direction: In the following questions, a statement of Assertion (A) i...
Scattering of light by colloidal particles is an optical activity. Coagulation of colloidal particles under an electrical field is an electrical property.
This question is part of UPSC exam. View all Class 9 courses
Most Upvoted Answer
Direction: In the following questions, a statement of Assertion (A) i...
Assertion : Tyndall effect is an optical property.
Reason : Electrophoresis is an electrical property.

The correct answer is option B, which states that both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.

Explanation:
The Tyndall effect and electrophoresis are both properties related to the behavior of particles in a medium, but they are not directly related to each other.

Tyndall Effect:
- The Tyndall effect is the scattering of light by particles in a colloid or suspension.
- When a beam of light passes through a medium containing small particles, the light gets scattered in different directions.
- This scattering of light is responsible for the visibility of the path of the beam and the phenomenon is known as the Tyndall effect.
- The Tyndall effect is observed when the size of the particles in the medium is larger than the wavelength of the light.
- This effect is commonly seen in everyday life, such as the visibility of a laser beam in a smoky room or the visibility of dust particles in a beam of sunlight.

Electrophoresis:
- Electrophoresis is a method used to separate and analyze charged particles based on their movement in an electric field.
- It is an electrical property because it involves the movement of charged particles in response to an electric field.
- In electrophoresis, a sample is placed in a gel or a liquid medium and an electric field is applied.
- The charged particles in the sample migrate towards the electrode of opposite charge, allowing for their separation and analysis.
- Electrophoresis is widely used in various fields, such as DNA analysis, protein separation, and drug discovery.

Relationship between the Tyndall Effect and Electrophoresis:
- The Tyndall effect and electrophoresis are both properties related to the behavior of particles in a medium, but they are fundamentally different.
- The Tyndall effect is a phenomenon where light is scattered by particles, allowing for the visibility of the beam path, while electrophoresis is a method used to separate charged particles based on their movement in an electric field.
- The Tyndall effect is an optical property because it involves the scattering of light, whereas electrophoresis is an electrical property because it involves the movement of charged particles in an electric field.

Therefore, both the assertion and the reason are true, but the reason is not the correct explanation of the assertion. The Tyndall effect is an optical property, while electrophoresis is an electrical property.
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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 : Tyndall effect is an optical property.Reason : Electrophoresis is an electrical property.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, but (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 : Tyndall effect is an optical property.Reason : Electrophoresis is an electrical property.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, but (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 : Tyndall effect is an optical property.Reason : Electrophoresis is an electrical property.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, but (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 : Tyndall effect is an optical property.Reason : Electrophoresis is an electrical property.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, but (R) is true.Correct answer is option 'B'. Can you explain this answer?.
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