Who was the pioneer in obtaining the first action spectrum?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Biology Mcqsbiology-mcqs
Published
23 May 2018
Last updated
28 May 2026

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Explanation

The first action spectrum was successfully recorded by T.W. Engelmann, making him the pioneer in this area. The other names listed are incorrect or unrelated.

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