Question

experimental setup for verification of boyle law

Answer 1

v is indirectly proportional to pressure

And the graph is called isobar

Answer 2

Materials RequiredQuill tubeStandMetre scaleReal Lab ProcedureArrange the quill tube horizontally on a stand.The length of the air column is measured using a metre scale.Vertical heights at the two ends of mercury thread from the table are also measured using a metre scale.The difference between them gives the vertical height ‘h’ of the mercury thread. Here h=0. So pressure inside the tube is also H, which is the atmospheric pressure.ie; 76 cm of HgThe quill tube is then placed in a slanting position with the open end upwards.The length of the air column is measured and the vertical height, h of Mercury is noted. Now the pressure inside the tube, P=H + h.Quill tube is then placed in different positions, such as: vertical position with open end upwards and with open end downwards, slanting position with open end downwards and measure its corresponding length of the air column l and vertical height h. Now P×l  is calculated in each case.