The area under acceleration-time graph represents-

• (A). displacement
• (B). velocity
• (C). change in velocity
• (D). distance travelled

The area under an acceleration-time graph is a key concept in physics. It specifically represents the change in velocity of an object over a given time period.

Understanding the Options

• Displacement: This refers to the overall change in position, not directly represented by the area under an acceleration graph.
• Velocity: While velocity is related to acceleration, the area under the graph does not represent velocity itself.
• Change in Velocity: This is the correct answer, as the area under the acceleration-time graph indicates how much the velocity of an object changes during the time interval.
• Distance Travelled: Distance is related to displacement and velocity, but it is not directly represented by the area under the acceleration graph.

Final Answer

The correct choice is (C) change in velocity.