Question

when are of cross section of pipe increases , the velocity of flow of the liquid 1. increase 2 decreases 3. becomes 0 3. remain the same​

Answer 1

When area of cross section of pipe increases , the velocity of flow of the liquid will decrease.

Explanation:

1. Volumetric flow rate is defined as

Q=v∗a

where Q is the flow rate, v is the velocity of the fluid, and a is the area of the cross section of the space the fluid is moving through.

2. It is clear from the equation, that velocity is inversely proportional to the area of cross section.

3. Thus, on increasing the area of cross section, velocity of flow will decrease.