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NDA 2 2025 GAT, question 57

Topic: Physics

Q57

Which one among the following statements is correct ?

  1. (a) Pressure has magnitude as well as direction
  2. (b) As we go deeper in a liquid, the pressure decreases
  3. (c) Action and reaction forces act on the same object
  4. (d) Pascal and N/m2N/m^{2} represent the same unitCorrect answer

Solution.

Answer: (d) Pascal and N/m2N/m^{2} represent the same unit

  1. Pressure is force per unit area, so 1 pascal=1 N/m².
  2. Pressure is scalar, liquid pressure rises with depth, and action–reaction forces act on different objects.
  3. These checks eliminate the other choices.