Question

The distance between two tangents on opposite sides of the particle parallel to some fixed direction is called as _____ diameter.

• A. Martin diameter
• B. Feret diameter
• C. Projected area diameter
• D. Projected number diameter

Hint:

Feret diameter is helpful when measuring irregularly shaped particles using image analysis methods.

Answer 1

The Correct Option is B

Feret diameter, also called caliper diameter, is the distance between two parallel tangents on opposite sides of the particle in a fixed direction. It is widely used in image analysis and particle shape studies.