This research paper presents an experimental investigation of free convection in a top open right-side vented cavity. The left side vertical wall is maintained at uniform constant temperature. The other walls are insulated and assumed adiabatic. The temperature and velocity of the air are measured at various points along the inlet and outlet cross sections. The air flow inside the cavity is visualized using charcoal smoke. This demonstrates the existence of boundary layers along the left vertical hot wall. The effect on the air velocity and temperature with the variation in temperature of left wall is studied. The effect of variation of top and right-side vent size is also studied. The free convection in the tilted cavity is also studied. This experimental study is useful in understanding the mechanism of free convection in top open right-side vented cavity. The findings of study can be used to design cooling systems for electronic components inside the cavities.