Why X-ray can not pass through the glass but diamond or body?

This statement is incorrect. X-rays can indeed pass through glass. X-rays is a form of electromagnetic radiation composed of very high-energy photons, it has ability to pass through many materials, including glass, but the degree of penetration is affected by the density and thickness of the material.

In fact, X-rays are commonly used in medical and dental imaging to capture detailed internal structures of the human body. Although glass is denser than most body tissues, it does not significantly block X-rays.

Furthermore , X-rays can also pass through diamonds, which have a higher density than glass. The key factor determining X-ray penetration is the atomic number (Z) of the material. Materials with higher atomic numbers tend to absorb X-rays more strongly, while those with lower atomic numbers allow X-rays to pass through more readily.

Glass primarily consists of light elements such as oxygen, silicon, and calcium with relatively low atomic numbers, allowing X-rays to pass through. Similarly, human tissues are composed mostly of low-Z elements, making them permeable to X-rays.

On the other hand , diamonds are made of pure carbon with a higher atomic number (Z=6), leading to stronger absorption of X-rays compared to glass or body tissues.

In summary, X-rays can pass through glass, human body, and even diamonds, but their penetration depth and image quality may vary depending on the material's density, thickness, and atomic composition