Question

Q.1. Assertion : When a beam of light is passed through a colloidal solution placed in a dark place the path of the beam becomes visible.
Reason : Light gets scattered by the colloidal particles.

Answer 1

Answer:

Assertion (A): When beam of light is passed through a colloidal solution placed in a dark place the path of the beam becomes visible. Reason(R): Light gets scattered by the colloidal particles. i) Both A and R are true, and R is correct explanation of the assertion.

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Explanation:

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Answer 2

Answer:

Assertion: When a light beam passes through colloidal solution in a dark environment, the path of the light beam becomes apparent. The reason for this is that colloidal particles scatter light.

Explanation:

Both A and R are correct explanations of the assertion, and R is the proper explanation.

When a beam of light is transmitted through a colloidal solution in a dark environment, the colloidal particles scatter the light, making the path of the beam apparent. The Tyndall effect is the name for this phenomena.