One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism.

Monjur Alahi

One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of: 

(A) Blue and red light 

(B) Violet and green light 

(C) Indigo and green light 

(D) Orange and yellow light


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Salim Ahmed Kawsar

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The correct answer is (A) Blue and red light

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