Geophysics Eligibility

The eligibility criteria for an MSc in Marine Geophysics may vary depending on the institution, however, the basic requirement is to have a bachelor's degree in Earth Sciences, Physics, or Geophysics from a recognised university. You may also need to have a minimum aggregate score of 50–60%.

The eligibility criteria for a BSc in Geophysics include:A minimum aggregate score of 55% in Class 12 from a recognised board.A major subject in Electronic Science, Chemistry, or Mathematics from the Science stream.BSc in Geophysics is a UG degree programme that studies the Earth's inner workings, gravity, and magnetism. 

Yes, you can appear for IIT JAM.

Hi Ankit Dubey, Eligibility is as below:
Minimum Eligibility to Apply
Qualification: Graduation: 55%
Entrance exam IIT JAM followed
For more details, click below
https://www.shiksha.com/science/course/m-sc-in-applied-geophysics-indian-institute-of-technology-bombay-powai-Mumbai-296886.

As per me it is possible but the condition is that you should be thorough in the concepts of geophysics and then you should go for M.Sc in geophysics.