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.
in Education 11 years ago 34 responses

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Years,Months,Weeks,Days,Hours,Minutes,Seconds
Year,Month,Week,Day,Hour,Minute,Second
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Whom you will give gift in your first month salary?

Gifts are generally shared with their loved ones. Receiving first month salary is a big achievement in everybody's life. They will share their joy with their dear ones by gifting them.To whom will you gift?
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