# period of a pendulum immersed in water

Does the value of $g$ change inside a dense fluid? How would the time period of simple pendulum change when immersed in water?

• Neglecting viscous drag on the pendulum? – Chet Miller Mar 23 '17 at 15:46
• Ignoring any viscous drag the upthrust will result in the effective value of $g$ being lower. – Farcher Mar 23 '17 at 16:45

The value of $g$ wouldn't change (assuming you are doing this experiment at approximately the same height above sea level as you would test an unsubmerged pendulum).