Institution: বঙ্গবন্ধু শেখ মুজিবুর রহমান বিজ্ঞান ও প্রযুক্তি বিশ্ববিদ্যালয় (BSMRSTU) Exam: A ইউনিট || বঙ্গবন্ধু শেখ মুজিবুর রহমান বিজ্ঞান ও প্রযুক্তি বিশ্ববিদ্যালয় || 2011
Topic: Physics (পদার্থবিদ্যা), Subject: General Science (সাধারণ বিজ্ঞান)

Best Answer Explained in Below-:

The question 'পীড়নের মাত্রা সমীকরণ কোনটি?' translates to 'What is the dimensional formula of pressure?' In the International System of Units (SI), pressure is defined as force per unit area. To understand its dimensional formula, we need to break it down.

1. **Force**: The dimensional formula for force is derived from Newton's second law, which states that force equals mass times acceleration (F = ma). The dimensional formulas are:
- Mass (M): [M]
- Acceleration (a): It is the change in velocity (length/time) over time, which gives its dimensional formula as [L T^-2] (length per unit time squared).
Therefore, the dimensional formula for force is:
\[
[F] = [M][L T^{-2}] = M L T^{-2}.
\]

2. **Area**: Area is measured in square units of length. Its dimensional formula is:
\[
[A] = [L]^2 = L^2.
\]

3. **Pressure**: Pressure is defined as force per unit area:
\[
Pressure = \frac{Force}{Area} = \frac{M L T^{-2}}{L^2} = M L^{-1} T^{-2}.
\]

Putting this all together, we find that the dimensional formula for pressure is \( M L^{-1} T^{-2} \), which corresponds to option D). Thus, it is the correct choice.