WBBSE Madhyamik Physical Science study plan

State Ohm's law and compute current, potential difference and resistance in 15 numericals, including resistivity problems with unit conversion to ohm-metre.

Derive and apply equivalent resistance for 10 series, parallel and two-branch mixed circuits, drawing each circuit diagram before solving.

Apply Joule's law of heating to calculate heat produced, power and energy consumption (in kWh) for 8 household appliances.

Describe the experimental verification of Ohm's law, listing the circuit, rheostat use, and three precautions that keep the ammeter and voltmeter correctly placed.

Sketch magnetic field lines around a straight conductor, a circular loop and a solenoid, and apply the right-hand thumb rule and Fleming's left-hand rule to 10 given situations.

Explain the construction and working of a DC electric motor and an AC generator, labelling split ring, slip rings, brushes and field magnet on your own diagrams.

State Faraday's and Lenz's laws of electromagnetic induction and use them to explain step-up and step-down transformers with three everyday examples.

Distinguish an electromagnet from a permanent magnet and list four industrial or domestic uses of electromagnets.

State the two laws of reflection and locate images of five objects placed before plane mirrors by drawing accurate ray diagrams.

Construct ray diagrams for a concave mirror at all six standard object positions and tabulate image position, size and nature for each.

Solve 12 numericals using the mirror formula and magnification, keeping sign conventions consistent and stating the image nature in every answer.

Define principal axis, pole, centre of curvature, principal focus and focal length, and relate focal length to radius of curvature as f = R/2.

State Snell's law and solve 10 numericals on absolute and relative refractive index, including the speed-of-light relation n = c/v.

Draw ray diagrams for convex and concave lenses at six object positions each and state whether the image is real or virtual, erect or inverted.

Solve 12 numericals using the lens formula and compute power of a lens in dioptres, including two-lens combinations in contact.

Explain dispersion of white light through a prism and scattering effects such as the blue sky, red sunrise and Tyndall effect in three or four sentences each.

Compare the Rutherford and Bohr atomic models, stating two limitations of each, and write the 2,8,8 electron distribution for elements with atomic number 1 to 20.

Define atomic number, mass number, isotope, isobar and isotone, then compute proton, neutron and electron counts for 10 given nuclides.

Compare Mendeleev's periodic table with the modern long form, and describe how metallic character and valency change across a period and down a group.

Differentiate ionic and covalent bonding by electron transfer versus sharing, then draw electron-dot structures for 10 compounds such as NaCl, MgO, H2O, CO2, CH4 and NH3.

Classify 15 common elements and compounds as metal or non-metal and write balanced equations for the reactions of metals with oxygen, water, dilute acid and a salt solution.

Explain the electrolysis of molten sodium chloride, aqueous copper sulphate and acidified water, writing the anode and cathode reactions and the overall equation for each.

Name and draw the structural formulae of the first five alkanes, two alkenes and two alkynes, and identify the alcohol, aldehyde and carboxylic acid functional groups in given structures.

List three uses each of common metals and non-metals, and explain in two lines how alloying changes a metal's properties.

State Boyle's law and Charles's law, and solve 10 gas-law numericals after converting every quantity to SI units and kelvin.

Apply the combined gas law and the ideal gas relation PV = nRT to 8 numericals, including two where density or molar mass must first be found.

Calculate molecular mass, molar mass, and convert between moles, mass, number of particles and volume at STP (22.4 L) for 12 substances.

Balance 12 skeletal chemical equations and solve 6 stoichiometry problems covering mass-mass and mass-volume relationships.

Convert between SI units of length, mass, time and derived units, and compute least count and reading error for a metre scale, vernier caliper and screw gauge.

Distinguish distance from displacement, speed from velocity, and solve 10 kinematics numericals using the three equations of motion and a v-t graph.

Apply Newton's laws to 8 force problems including momentum conservation, then compute work, power, kinetic energy and potential energy for 10 situations.

Solve 8 calorimetry numericals using specific heat and latent heat, and describe conduction, convection and radiation with one example each.

Explain wave frequency, amplitude, wavelength, echo and ultrasound, and solve 6 numericals on echo distance and the speed-of-sound relation v = f times wavelength.