More Than Method

Less Than Method

Less than method

If a liquid used in capillary rise method for measuring surface tension whose surface tension is more than that of water, then rise in capillary tube

Find the the measure of angleP and angleS if barSP||barRQ (If you find mangleR , is there more than one method to find mangleP ?)

Electron affinity of sulphur is 1) More than O and Se 2) More than O but less than Se 3) Less than O but more than Se 4) Equal to O and Se