What solution is best for cleaning lenses?
a. Commercial glass cleaning solution (e.g., Windex)
b. Water
c. Benzene
d. Xylol
ANS: A
A commercial glass cleaning solution is best used for cleaning lenses. Water will often only smudge anything present, especially on an oil immersion lens. Benzene and xylol are solvents that are carcinogenic and should not be used.
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