punter196 wrote:Hello everyone..
I am basically from Engineering background..
But I have been in Teaching Physics for IIT-JEE entrance in Pune from last 5 years
I am planning for Research in physics.
I appears for PGRE on 6th April in Colombo.
My experience was very nice..
I found almost 60-70% questions very simple and I solved them in my first attempt.. these questions were like 12th STD based..It was all that stuff that I teach students on daily basis.
But remaining questions from QM and Relativity I found difficult as I have never studied those topics in my graduation
But overall I wud say the paper was quite moderate level..
I am expecting 70+ correct answers
What do you think what will be the Scaled score out of 1000 if I get 70-75 questions right?
Hard to say what the scaled score will be, but based off of the rubrics from the released past exams, there's always some threshold above which every score is 990 that depends on the level of difficulty of the exam (which makes sense because the harder the exam, the more shifted down the distribution of raw scores will be, so the threshold will be set lower). Below that threshold, however, every 1-2 incorrect answers moves your score down by 10 marks, which is a bit brutal.
It's hard for me to guess the level of difficulty of the exam because I expect to score towards the higher end (what can I say, I did my undergrad at a top 10 global university, so I was trained well). Based on how difficult or not difficult I found the various past exams though, I'd guess the threshold will probably be around 80 +- 3? In which case a score of 70-75 could be anywhere between 850 and 900 (if the threshold is 84 like the 2017 exam), 880 and 920 (if the threshold is 82 like the 2008 exam), or 940 and 980 (if the threshold is 76 like the 1992 exam). The formats of the exams in 1992 and 2008 were different though; incorrect answers took off 1/4 of a mark each from your raw score, so naturally the threshold would be lower compared to if incorrect answers weren't penalized with deducted marks.
However, well done for 70+ correct answers. It's definitely a hard test and coming from engineering, I can imagine it's even more difficult for you because QM and relativity are not intuitive by any stretch. It had some conceptual QM questions that can be difficult if you're not well familiar with the actual postulates of QM. The atomic questions also weren't trivial and there were some scenarios that I had never encountered before either.
I remember about 50 of the questions that were on the exam, so I was able to see of the questions that I wasn't 100% sure on, what I got right and what I didn't. There's still one question that sticks out that I would love to know the actual answer to, but I just can't find an example of it online to check. And obviously I can't ask others on this forum about it because we can't reveal any of the questions. So I guess I'm stuck with my curiosity.