Which of the following conditions should satisfy for the formation of supercritical flow in an open channel?
1
When the depth of flow in a channel is less than critical depth and Froud's number is greater than 1
2
When the depth of flow in a channel is greater than critical depth and Froud's number is greater than 1
3
When the depth of flow in a channel is greater than critical depth and Froud's number is less than 1
4
When the depth of flow in a channel is equal to critical depth and Froud's number is equal to zero