A) is susceptible to moisture.
B) is not so sensitive.
C) is worse than back surface coating.
D) cannot prevent dual reflection.
Correct Answer: A
Solution :
Option [a] is correct Explanation: The front surface mirror is substantially more sensitive than a bare glass surface. For example, fingerprints can easily cause oxidation of the metal. Also, moisture or aggressive gases may cause oxidation of the mirror coating.
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