To answer this question, we need to understand the contributions or fields associated with each pair.
Option A) Roentgen: X-ray - This option is correct. Wilhelm Conrad Roentgen was a German physicist who discovered X-rays in 1895. X-rays are a type of electromagnetic radiation that can penetrate solid objects and are commonly used in medical imaging.
Option B) Newton: Law of gravitation - This option is correct. Sir Isaac Newton was an English physicist and mathematician who formulated the laws of motion and the law of gravitation. The law of gravitation states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
Option C) Faraday: Diffusion of gases - This option is incorrect. Michael Faraday was an English scientist who made significant contributions to the fields of electromagnetism and electrochemistry. He is known for his discoveries of electromagnetic induction and electrolysis, among others. Diffusion of gases is not directly associated with Faraday's work.
Option D) Pasteur: Bacteriology - This option is correct. Louis Pasteur was a French chemist and microbiologist who made numerous contributions to the field of microbiology. He is considered the father of modern bacteriology and is known for his work on pasteurization, vaccinations, and the germ theory of disease.
Therefore, the incorrect pair is C) Faraday: Diffusion of gases.