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How do x-rays and gamma rays compare to other electromagnetic waves, in terms of wavelength and frequency?
They have the shortest wavelengths and highest frequencies of all the electromagnetic waves
Do x-rays or gamma waves have higher frequency?
Gamma waves
What are x-ray machines at the hospital used for?
To view the internal structures and to help diagnose illnesses
What precautions do hospital staff take against the harmful effects of x-rays?
They leave the room when the x-rays are taken
Give 3 uses of gamma rays in hospitals
To sterilise equipment
In medical imaging
To treat cancer
Note 
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