Question:easy

Which among the following criteria is used for describing shape of an object?
(A) Roundness
(B) Sphericity
(C) Charted standards
(D) Resemblance of geometric bodies
Choose the correct answer from the options given below:

Show Hint

Recall the different qualitative and quantitative methods used together to describe shape in physical properties of produce.
  • (A) and (B) only.
  • (A), (B) and (D) only.
  • (A), (B) and (C) only.
  • (A), (B), (C) and (D).
Show Solution

The Correct Option is D

Solution and Explanation

Instead of recalling a list, reason out what would be needed to fully describe an irregular object's shape, then check the given options against that need.

You would want a measure of edge sharpness, that is roundness. You would want a measure of overall compactness compared to a sphere, that is sphericity. You would want a fast, practical visual method for grading lines, that is comparison with charted standards. And you would want a simple descriptive label for communication, that is comparing the shape to familiar geometric bodies like oblate, oblong, or conical.

Each of the four options fills a distinct, non-overlapping need in shape description, none of them duplicates another, and none of them is irrelevant to the topic. That is a strong sign that all four belong in the answer together rather than being split into a partial list.

\[\boxed{\text{(A), (B), (C) and (D)}}\]
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