Nutritional Facts - Secret Behind the Fermented Rice Water! #Shorts #Magnetbrains

The two dams are identical with the exception that the water reservoir behind dam A extends twice the horizontal distance behind it as that of dam B . Which one of the following statements regarding these two dams is correct ?

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

Water stands at a depth D behind the vertical upstream face of a dam as shown in the figure. The force exerted on the dam by water per unit width is