1.In an experiment to determine the acceleration due to gravity g, T2 was plotted on the vertical axis and l on horizontal axis. The value of g is obtainable from -----------

2 In an experiment to determine the acceleration due to gravity g using the simple pendulum, T2 was plotted on the vertical axis and l on horizontal axis. The graph

3 in an experiment to verfy Newton's law of cooling, the temperature of hot water in a calorimeter ToC is plotted against time t/min. Which of the following is true about the graph?
4 A student recorded the length of a piece of wire measured with the meter scale as 98.6cm. What is the relative error in the measurement?

12 Which of the following is NOT true in the experiment to determine the acceleration due to gravity by means of a simple pendulum from inaccessible height, where h is the height of the bob from the floor and H the inaccessible height?

Samuel - your questions are incomplete. However, before bothering to write them all out please be aware that we don't provide homework answers, just support to help you along. So please try and solve these yourself, and then show us what you think the answers are and why. Then we'll be happy to help if you are still stuck.