Know about X-rays

X-rays are electromagnetic waves which have a very short wavelength. It was first discovered by a German scientist Roentgen. X-rays are used in medical fields, research fields and also in many industries. Some of the main uses of X-rays are it is used to detect tumors in a human body and it is used to study the structure of alloys, etc.,.Now with this introduction it is time for you to take the quiz.
Cancel
This question is required.

Please wait..

Years,Months,Weeks,Days,Hours,Minutes,Seconds
Year,Month,Week,Day,Hour,Minute,Second
Please select minimum {0} answer(s).
Please select maximum {0} answer(s).