Yes, the correct answer is 2. When an experiment disproves a scientist's hypothesis, the scientist should revise the hypothesis and try the experiment again. This is because a hypothesis is a proposed explanation or prediction for a specific phenomenon. If the experiment does not support the hypothesis, it indicates that the initial assumption may not be accurate. By revising the hypothesis, the scientist can formulate a new explanation or prediction that aligns with the observed data and conduct further experiments to test it. This process allows for the refinement and improvement of scientific understanding.
