Question

Assertion (A): Cyclone is a settling device to separate small solid particles or mist from gases with high efficiency.
Reason (R): The outward force on particles in cyclone due to low tangential velocities is substantially lower than gravity force and this contributes to enhanced separation.
In light of the above statements, choose the correct answer from the options given below:

• A. Both (A) and (R) are true and (R) is the correct explanation of (A)
• B. Both (A) and (R) are true and (R) is NOT the correct explanation of (A)
• C. (A) is true but (R) is false
• D. (A) is false but (R) is true

Hint:

Cyclone: uses centrifugal force.
Centrifugal force > gravity for separation.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Cyclones are used for separation.
They rely on centrifugal force.

Step 2: Key Formula or Approach:
No specific formula.
Need to understand cyclone operation.

Step 3: Detailed Explanation:
Assertion A: Cyclone separates small particles or mist from gases - true.
Reason R: Outward force due to low tangential velocities is substantially lower than gravity - false.
In a cyclone, the centrifugal force is much higher than gravity.
This is what enables enhanced separation.
Thus, A is true but R is false.

Step 4: Final Answer:
(A) is true but (R) is false.
Hence, the correct option is (C).