Hello and welcome to the unboxing. Today I've got here what has got to be the
most highly requested exam and video topic that I've ever had and it is to
cover the NEET exam that's the national eligibility and entrance test
conducted in India for students who want to go on to study medicine
it's an undergraduate exam so this would be set by students say between 17 and 25
who want to get into a variety of medical degrees at university and it's a
very competitive exam now in this video I'm just going to take a little bit of a
look through this exam and see what it entails I'm also going to do something a
little bit different today and I've made this little report card to give you a
little bit more idea as I've got scope a difficulty time pressure and
competitiveness of this exam living way to try and measure some of those factors
and that's just going to be my opinion. So, who am I to be judging this exam in
the first place? I guess I am no one to be judging this exam I'm an Australian
and I've never had to sit this exam but having said that I am someone who has
completed my own undergraduate degree I did physics and maths and I'm someone
who has sat a lot of exams of my own and looking at other people's exams has
become a bit of an interest of mine so I'll give you my thoughts on this and
you can see what you think. This is the 2019 version of the exam so it's fresh
off the press and I think people have just sat this recently. Let's just jump
into it. So this is the exam and let's have a look at the front page first. The
test is three hours long and has 180 questions.
Each question carries four marks, so each correct response you get the four marks
but for each incorrect response you will lose one mark so that's a bit of a yikes
already. Some pretty standard stuff here and there note that people aren't
allowed to use a calculator. So that makes all those calculations especially
for the physics section all that bit harder. We can turn over and
look at the first page, and this is starting off straightaway with the
biology section or to be more correct it's the botany and zoology section.
These biology questions take up the first 90 questions which is an entire
half of the exam so it makes sense that an exam for people that want to go into
medicine is extremely heavy in the biology questions that does make some
sense, but then after question 90 we go on and we're now on the physics section.
So there are 45 physics questions and then after that there are 45 chemistry
questions. So it does cover physics chemistry and biology there is no math
section and definitely a big weighting to those biology questions after the front.
Just for a bit of a taste we can take a read of this very first bio question
here it says, "from evolutionary point of view retention of the female gametophyte
with developing young embryo on the parent sporophyte for some time is first
observed in:" which of these four answers now to be honest this question is one I
would do terribly on there are several words here that I don't know the
definition of. I did bio at high school it was a few years ago now but I did do
well in it and I do have quite a good memory of what we did but it looks like
this is probably more in depth and I covered in my school bio class. We go on
from there to cover things like reproduction, DNA things about global
warming it seems, hominids, so you know a bit of evolution in here and it looks
like yeah a lot of stuff covering diversity of life as well as structure
and function of biological systems. We've got human biology mixed in with plant
biology and it's really broad. I am kind of surprised at the way that different
biological fields are kind of all mixed in together like
there seems to be no very clear separation of topics.
There's even, I guess, a bit of environmental biology with a question
here that jumps out to my eye about, "which of the following methods is the
most suitable for the disposal of nuclear waste?" And the answer of shooting
the waste into space amuses me but I think the correct answer is actually
number two, "burying the waste within rocks deep below the earth's surface." And
as we go on through the sections, yeah we can see that a lot of these questions
would take you having done a lot of reading and a lot of memorization of
biological ideas beforehand because it would be possible to answer some of
these questions, you know, in that very short period of time that you have to
answer each one if it's already at the top of your head. So things like knowing
already which purines are found in DNA and RNA or how the drug heroin is
synthesized it's a bit of another strange wonder maybe yeah so definitely
a lot of questions here and you'd have to be going into this exam with your
mind almost exploding full of all these things that you don't want to forget
because there could just be a question on them. So let's go on to the physics
section which is just starting here. Now we've got all your usual suspects, again
we've got simple harmonic motion, we've got kinematics we've got lenses,
we've got some radiation, we've got circuits and electronics and
we've got things like, you know, the collision of particles things to do with
the conservation of momentum. More here including dimensional analysis
thermodynamics and again all the questions are sort of mixed into each
other they're not like separated out into sections or anything. I think some
of these circuit questions are actually pretty cool.
This is stuff that I didn't really study until I was already in an electronics
course part of my physics degree, so I kind of
wish I had exposure to this earlier on. Now you probably don't appreciate the
questions when you're actually studying for this exam and all physics and
chemistry and bio probably feels like a bit of a nightmare because you're having to learn
it in a way that you're being tested and maybe you don't have time to even
appreciate these ideas because you're just having to cram so many of them and
learn so many of them for such an intense exam which covers so much.
Because physics is my area, I'll solve one of the physics problems as a way to
give you some idea of maybe how involved each question is maybe how much working
you could expect to see for each one of these. Now I'm going to pick this
question here, number 132. "A solid cylinder of mass 2 kg and radius
4 cm is rotating about its axis at the rate of 3 rpm." So I'll draw a
little cylinder here and it's rotating about its axis there. Now, what do we know?
We know what it is rotating at and we know that we're slowing it down to a
stop. So we know that our final omega (ω_f) at angular velocity is going to be equal to
zero and our initial omega is going to be equal to 3 rpm. Now that's
revolutions per minute so to convert that into radians per second we would go
three times two pi over 60 (3 × 2π/60), that would be six pi over 60 (6π/60)
which we could cancel to pi over ten (π/10) rads per second.
Now in the question we're being asked about the torque
required to bring it to a stop. So hopefully something that we've
remembered going into this exam is a way to find torque (τ), and that is in rotational
mechanics, the 'I', so the moment of inertia times the angular acceleration (α).
Now if you've also memorized, so yeah it's a lot to cram into your mind, but if
you've also memorized the moment of inertia for a cylinder rotating like
this, you would know that it is: m R squared over two (mR²/2). I guess that kind of is
fair enough to know if you're studying physics because you do a lot of moment
of inertia questions with different shapes but still you you wouldn't want
to be doubting yourself on whether you've got that one correct. But anyway, it's
'I' times the acceleration. Now we have the mass in the radius so all we need
now is this angular acceleration or in this case it would be decelerating to
zero. Now what we need to know to be able to get that is a kinematic equation for
rotational motion. Now the one that in particular we're going to need to use is
that the final angular velocity squared is equal to the initial squared plus two
alpha times theta. So that's the you know, basically the distance or the angular
distance you've moved through, the angular acceleration. So if you're not
already doing a lot of rotational mechanics problems you be like where on
earth did this come from but if you're familiar with kinematics at all this is
sort of an analogue to one of the linear kinematic equations and again I feel
like it's something you need to memorize for the sake of this exam which you know
it would be easier if they had a formula sheet or something like that but of
course this is a pretty difficult exam so let's see if we can plug things in
here and solve for our acceleration. That should be the initial zero is pi
we've got theta being 2 pi times 2 pi because it was 2 pi revolutions but each
revolution itself was 2 pi. We can solve this and I'll just write it up here by
taking that over there and dividing by these numbers you would end up with
and then plugging that into here with two kgs and four centimeters squared
you'd end up with your torque being equal to two times ten to the minus six Newtons,
and that corresponds to this answer to here. That was a little involved and
it wasn't trivial by any means although you did have to kind of come in with
these memorized formulas which make it so much easier for you. The very act of
knowing what to actually do and what process to take can trip you up and
there are plenty of points even like this finding the theta here which you
might get a little bit confused because they using two pi revolutions can be a
little bit of a tricky thing to say and then to realize it's two pi squared. Now
having worked through a little bit of a problem I will say that these physics
problems don't seem as involved as the JEE advanced physics questions. I would
say that maybe make sense as well I think the JEE advanced questions which
I have looked a little bit at in videos before and gathered plenty of hate
and comments about. It would make sense that those problems are more involved
and have more calculations I think because for that exam you're wanting to
go on to be an engineer rather than going into medicine where maybe the bio
was more of the focus. But that's still probably quite involved in
I think that's around about right for the amount of working some of
these physics questions would take you. Let's move on now, that's the end of
our physics questions and we actually started on to our chemistry ones down
here. 136 was the start of our chemistry and from here on out it's all chemistry.
So yeah you can see we've got some like organic chemistry we've got things about
bonding, orbitals, ions, I guess obviously you're
going to have to be pretty familiar with the periodic table at this point, you're
asked about the elements here, you're asked about solutions and you even have
to do a little bit of calculations and some of these questions.
We're asked about amino acids, the hydrogen atom and transitions, we're
asked about thermal stability, organic chemistry again. Definitely a pretty
broad range of chemistry topics and that is our last page from there. Let's
have a think about this exam and what we just saw. I've got my little
report card here now I'm going to put NEET in as our name the scope of
the subjects mentioned is pretty high like within biology within physics and
chemistry you cover basically you know the scope of those subjects this exam
doesn't have any questions or sections focusing on math in particular like
exams like the JEE do, so I'll take math out of the scope, but having said that I
will give the scope an 'A', because it does, within those subjects,
basically everything seems like it's fair game there. Now in terms of the
difficulty, yes this is a difficult exam obviously to learn so much content and
the level at which you need to know is not trivial like we worked through that
physics problem and it was a few steps. Like I said I wouldn't say the
difficulty of those physics questions is as high as the JEE, but still definitely
you know you need to know your physics to get by, so I'll give that an 'A' as well.
Now the next two categories are where I really think this NEET exam becomes
very challenging. In terms of time pressure, like I mentioned, there are
180 questions and 180 minutes to do all of
them, but that's not even taking into account that you'll need
to save time maybe even 10 to 15 minutes of your exam to fill in the little
bubbles on your multiple choice answer sheet because, it's multiple
choice you need to record your answers as you go along and then make sure
you've colored them in correctly. That's actually going to take away from
the total amount of time you have and I'd say it's maybe fair to say you've
actually only got about 45 seconds maybe 50 seconds for each question by the time
all that's done. And that actually is kind of crazy like even me working out
that physics problem before it took me more than that just to write it down and
I already felt like I knew what I was doing. It doesn't really leave you any
time to be sitting around wondering what to do and what the correct approach is.
I guess that's where a lot of memorization can really help you I feel especially
for maybe that biology section. I do in general think that biology sections
where you can kind of memorize the answers to things you can move through
them faster than say a math or a physics section where you actually do have to
make calculations for the most part for most of the questions. For time
pressure for this insane amount of questions in this amount of time I'm
going to give it an A+ and then lastly is a really big component of the exam
which you can't really capture just from looking at the paper like I do and like
the previous videos I've made about exams, especially Indian exams, you know
it's really hard to capture how competitive they really are, and in the
end it doesn't really matter how many problems in here you find easy and that
you can do because what really matters is how many questions everyone else
sitting this exam could do because what matters is your final ranking amongst
all your peers. So in this case the inherent difficulty of the exam really
depends on how others find it as well you can think you did really well but if
everyone feels that way you might come out with kind of a poor
ranking. I have also heard that because students in India really do study
intensely for this exam and try their hardest
maybe they tend to score quite well which means that even getting one
question wrong and messing up in one spot where you shouldn't have can
actually bring down your ranking quite considerably. From the numbers I've seen
it appears that over a million students would sit this exam and prepare to sit
this exam but there only seems to be about 60 000 seats for people to
get in. For that reason I think this exam is insanely competitive and that
really brings up its difficulty rating so I'm going to give it competitiveness
A++. Now thank you to everyone who has, in the past, left me a comment or a
message suggesting that I cover this exam I hope I did it justice for you and
that you found my opinion slightly interesting or is slightly valuable. My
best wishes to people who are preparing for this or other exams I know it's
always exam season somewhere across the world. Try to stay happy and positive
throughout your studies and I hope you get to the other side of it.
Thanks for watching and I'll see you next time