Hello ruchitha,

The weightage for physics is as follows

Mechanics24%

Waves14%

Thermodynamics09%

Modern Physics18%

Electricity and Magnetism25%

Optics10%

And the weightage for maths is,

Arithematic32%

Calculus23%

Algebra04%

Geometry32%

Trigonometry09%

And the weightage for chemistry is,

Physical Chemistry21%

Inorganic Chemistry57%O

OrganicChemistry22%

We can't predict the exact number of questions on each topic, but with respect to the details above,you can make your preparations.

All the best..