Fluorescent penetrant indications are more visible than colour contrast penetrant indications because:

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Mr. Dubey

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Q. Fluorescent penetrant indications are more visible than colour contrast penetrant indications because:

(A) They reflect more light
(B) They emit rather than reflect light
(C) They contain a higher concentration of dye particles
(D) Yellow and green contrast more than red and white

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✅ Correct Answer: (B) They emit rather than reflect light

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