Wilhelm Conrad Rontgen discovered x-rays in November 1895 while experimenting with cathode ray tubes. X-rays are a form of electromagnetic radiation with wavelengths between gamma rays and ultraviolet radiation in the range of 10nm to 0.01nm. X-rays are classified as either soft x-rays, with photon energies below 10 Kev, or hard x-rays, with photon energies above 10 Kev. X-rays have no mass, travel at the speed of light, and can be absorbed or scattered by human tissue, potentially causing chemical or biological damage.

1. PRESENTED BY
NAVYASREE M
KEYI SAHIB B.Ed. TRAINING COLLEGE

2. X-rays
X-rays are a form of electro magnetic radiation.
They belong to the short wavelength ,high
frequency end of the electromagnetic
spectrum, between gamma and the ultraviolet
radiation. They have wavelength in the range of
10nm-0.01nm .

4. Discovery

5. X-rays were
discovered in 8th
November in 1895
when Wilhelm
Conrad Rontgen, a
German professor of
physics was working
with cathode ray
tube in his laboratory.

6. Types of x-rays
Soft x-rays
Photon energies
below 10 Kev
Hard x-rays
Photon energies
above 10 Kev

7. Characteristics of
x-rays

8. 1
X-rays are invisible

9. 2
X-rays are electrically neutral

10. 3
X-rays travel at the speed of light in
vacuum

11. 4
X-rays form a heterogeneous beam

12. 5
X-rays have no mass

13. 6
X-rays cannot be optically focused

14. 7
X-rays travel in straight line

15. 8
X-rays can be absorbed or scattered by
tissue in the human body

16. 9
X-rays can cause chemical and biological
damage to living tissue

17. X-rays cause chemical changes to occur in
radiographic and photographic films
10

18. Thank you