Step 1: Define each type of knowledge in List-I. \[\begin{array}{rl} \bullet & \text{(A) Meta Knowledge: Knowledge about knowledge. This includes understanding the extent of one's own knowledge, or knowing who knows what.} \\ \bullet & \text{(B) Declarative Knowledge: Knowledge of facts, concepts, and ideas that can be explicitly stated or "declared". It's the "knowing what". It often resides in short-term memory for immediate use.} \\ \bullet & \text{(C) Semantic Knowledge: A type of long-term memory that stores general world knowledge, concepts, and meanings, independent of personal experience.} \\ \bullet & \text{(D) Tacit Knowledge: Knowledge that is difficult to transfer to another person by means of writing it down or verbalizing it. It is deeply personal and gained through experience.} \\ \end{array}\]
Step 2: Match the definitions to the descriptions in List-II. \[\begin{array}{rl} \bullet & \text{(A) Meta Knowledge matches (II) Knowledge about which information others need (a form of knowing "who knows what").} \\ \bullet & \text{(B) Declarative Knowledge matches (IV) Knowledge that resides in short-term memory (facts you can recall).} \\ \bullet & \text{(C) Semantic Knowledge matches (I) It is highly organized knowledge that resides mainly in long-term memory.} \\ \bullet & \text{(D) Tacit Knowledge matches (III) It gets embedded in the human mind through experience.} \\ \end{array}\]
Step 3: Form the correct combination. The correct matching is A-II, B-IV, C-I, D-III.
A weight of $500\,$N is held on a smooth plane inclined at $30^\circ$ to the horizontal by a force $P$ acting at $30^\circ$ to the inclined plane as shown. Then the value of force $P$ is:
A steel wire of $20$ mm diameter is bent into a circular shape of $10$ m radius. If modulus of elasticity of wire is $2\times10^{5}\ \text{N/mm}^2$, then the maximum bending stress induced in wire is: