Introduction:
The IIT JAM (Joint Admission Test for M.Sc.) Physics exam is conducted by the Indian Institutes of Technology (IITs) for admission into their postgraduate physics programs. The cutoff marks for the exam determine the minimum score required for a candidate to be eligible for admission. However, the cutoff for the IIT JAM Physics exam is not different for candidates with different educational backgrounds, such as B.Sc. or B.Tech.

Explanation:
The IIT JAM Physics exam is designed to test the fundamental knowledge and understanding of physics, regardless of the candidate's educational background. The syllabus for the exam covers topics from various branches of physics, including classical mechanics, electromagnetism, quantum mechanics, thermodynamics, and statistical physics. The questions in the exam are designed to assess the candidate's knowledge and problem-solving skills in these areas.

The cutoff marks for the IIT JAM Physics exam are determined based on the overall performance of the candidates. The cutoff is usually set such that a certain percentage of the top performers are shortlisted for admission. The cutoff marks may vary from year to year depending on the difficulty level of the exam and the number of candidates appearing for the exam.

Conclusion:
In conclusion, the cutoff for the IIT JAM Physics exam is not different for candidates with different educational backgrounds. The exam is designed to test the fundamental knowledge and understanding of physics, regardless of the candidate's educational background. The cutoff marks are determined based on the overall performance of the candidates and may vary from year to year.