This might help u

 

Physics :

In physics, about 20 to 40% (average weightage - about 30%,) of the total marks is for the topic 'Mechanics.' A deeper look at the last 5 years papers reveals that the favorite topic is 'Rigid Body Rotation' and 'Motion on a Plane.' Topics like 'Simple Harmonic Motion' and 'Work and Energy' on the other hand have been accorded relatively less priority for these years.
The next important topics are 'Modern Physics' and 'Thermal Physics,' each commanding a share of about 15% of the total marks.
Next in line are 'Optics,' 'Electrostatics,' 'Current Electricity' and 'Electromagnetism,' each of these has contributed about 11 % to the total marks in the past. The trend of marks for 'Optics' has been most consistent over the years.
The 'Mechanical Waves' (Sound) has accounted for about 7% of the total marks.

 

Maths :

In mathematics, 'Calculus' accounts for nearly one third of total marks.
Closely following 'Calculus' is 'Algebra' with a weightage of about 25%.
Next in line are 'Analytical Geometry' and 'Trigonometry' accounting for about 18% and 12% of the total marks respectively.
The topics of 'Vectors' and 'Probability' account for as high as about 6% each.

 

Chemistry :

In chemistry, 'Organic Chemistry' has the highest weightage with average marks of about 36%.
'Physical Chemistry' is a close second with mean weightage of about 33%.
'Inorganic Chemistry' and 'General Chemistry' account for about 21% and 10% of the total marks.

 

 

Cant answer your question unless you let me know how much perfect you are with the concepts at present......

But if you have done your preperation well till now, and you are temperorily halting your preperation till the completion of your exams it is ok........that much time is sufficient for your preperation.  :)

 

and my name is srujana not srujna