Answer :
Final answer:
Option 3)
To express 7,500 nm as picometers, multiply by 1000 to convert from nanometers to picometers.
Explanation:
In Converting units of length, to express 7,500 nm as picometers, we need to convert from nanometers to picometers. Since 1 nm is equal to 10-12 m and 1 pm is equal to 10-12 m, we can use the conversion factor:
1 nm = 1 pm
Therefore, 7,500 nm is equal to 7,500 pm. So, the correct answer is option 3) 750 pm.
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