C) Hypnosis Certification this is only showing your certification and not a method of hypnosis
You are correct it is translucent because opaque let’s no light through but transparent lets almost all light through
Total amount of energy would remain constant according to law of conservation of energy. i.e., 50 Joules
In short, Your Answer would be Option C) <span>50 Joules because as energy converts from one form to another, it cannot be created or destroyed during the conversion.
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Hope this helps!