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gamma ray has higher freq. than x-ray.
x-ray is produced as a result of change in electron state due to either absorption/release of photons .
gamma ray is produced in radioactivity or nuclear reactions.
1.Gamma rays cause more harm to human body than the X- rays.
2.Gamma rays have shorter wavelengths than the X-rays.
3.X rays are emitted by the electrons outside the nucleus, and gamma rays are emitted by the excited nucleus itself.
4.X rays are used in hospitals for taking X-rays but gamma rays are not.
Good Answer, but point 4 is not correct. Gamma ray Imaging is used in nuclear medicine, also in astronomical observations. For ex - In nuclear medicine the approach is to inject a patient with a radioactive isotopethat emits gamma-rays as it decays and images are produced from the emissions collected by gamma-ray detectors. Images of this sort arre used to locate sites of b one pathology, such as infections or tumors. Another modality of nuclear imaging is called PET (positron emission tomography).