The IITs have admitted that four questions — one of Physics and three of Chemistry — in Paper 1 of its Joint Entrance Examination (advanced) had two answers.
More than 1.19 lakh students had appeared for the exam on May 25 for admission to 16 IITs. The answer key was uploaded on the website on June 1.
Question 18 of Physics and question 33 of Chemistry in paper 1 should have had a single-value answer between 0 and 9. Instead, two values were correct. Additionally there were ambiguities in the correct answers for questions 26 and 29 of the Chemistry section. The error in question 29 occurred because of translation in Hindi.
The ‘afterthought’ on the correctness of the four questions came after more than 60 professors reviewed the papers.
“There are no errors in answers. But we found that more than one answer was correct for four questions so we have decided to give marks to both,” said a JEE official.
“After the exam, I had mentioned that some of the questions had more than answers depending on how the students perceived the problem. This has encouraged a parallel process of thinking among students,” said RL Trikha, director, FIITJEE.
However, a student who took the exam said: “I wasted a lot of time on these questions and was perplexed since it was having two answers. I could have used the time in some other problems.”