Candidate Successfully Solves Physics Question by Elimination of Impossible Realities

The Art of Option Chemistry

According to student testimonials, Option (A) was 4900 J, Option (B) was 4.9 J, Option (C) was 49 J, and Option (D) was 0.49 J. Rather than resolving the differential equation, candidate 0921 reasoned that the examiner who set the question was fond of decimal traps and therefore Option (C) was the only option designed with sufficient malice to be correct.

The answer key released three days later confirmed Option (C).