Question
Find the distance covered by a particle during the time interval which the speed-time graph is-shown in figure.
Distance covered in the. time interval 0 to $20 s$ is equal to the area of the triangle OAB.Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Light ray emerges from water into air. Draw a ray diagram indicating the change in its path in water.