The type of stimulus that occurred when the ball rang is known as unconditioned stimulus.
Basically, an unconditioned stimulus is the type of stimulus that leads to an automatic response.
Pavlov's theory explained asserts that a smell of food is the unconditioned stimulus and hunger the unconditioned response. Here, the school bell acts to Pavlov's theory because it is learned to be associated with food.
In conclusion, the type of stimulus that occurred when the ball rang is known as conditioned stimulus.
Read more about stimulus
brainly.com/question/24868138
