uses and hazards Flashcards
1
Q
What is the approximate speed of light in a vacuum?
A
3 x 108 m/s
2
Q
Which of the following is a detrimental effect of microwaves?
A
Internal heating of body tissue
3
Q
Radio waves are used for which of the following?
A
Broadcasting music
4
Q
Which of the following is NOT a property of an electromagnetic wave?
A
They are longitudinal
5
Q
Which of the following is a detrimental effect of ultraviolet?
A
Damage to surface cells and blindness