MCQ Spotted Questions

Firstly an errata : in my notes the semiconductor diode I-V characteristic graph is WRONG. pls reflect the negative x-axis about the x-axis. otherwise u can refer to textbook or ask your friends.


Some very significant topics in which were NOT tested AT ALL.
- Electromagnetic Induction
- Lasers
- Superposition

Besides these three main ones which are likely to come out probably 2 or more questions in the MCQ paper, the following concepts and parts are not tested yet :


Measurement
- homogeneity of equations
- base quantities and base units
- derived quantities and derived units
- prefixes

Dynamics
- interpretation of graphs
- objects falling with air resistance
- projectile motion

Thermal Physics
- Q=mL
- Q=mcTheta
- Kinetic Theory of Matter
- Thermometry

Forces
- Hooke’s Law
- Upthrust, Archimedes principle, etc
- Torques
- Moment
- Forces in equilibrium, resultant force
- Free body diagrams

Dynamics
- objects inclined on a plane

Work, Energy,Power
- Work done in a stretched spring
- Power = Force X Velocity

Circular motion
- angular displacement
- objects in vertical circle or horizontal circle

Thermal Physics 2
- Avogadro constant
- Use of pV = NRT
- Use of the relation KE proportional to T.

Oscillations
- graphs for oscillations ( accn-disp, v-disp, v-t, a-t, s-t )
- damping of oscillations
- resonance
- forced oscillations

Wave motion
- transverse vs longitudinal waves
- phase difference
- intensity is proportional to amplitude squared.
- Intensity = power/area

Superposition
- Young’s Double slit experiment , use of fringe separation formula
- Diffraction
- Diffraction grating formula
- Stationary waves
- Stationary waves on string, and in pipes

Current of Electricity and DC circuits
- Q=It
- Mechanism of charge flow in metals and semiconductors
- Definitions
- Variation of resistant with T for metals and semiconductors ( e.g. therm )
- Potentiometer concept
- Internal resistance of a battery

Gravitational Field
- to know all the formulas

E-field
- how to draw E-fields
- E = V/D concept.

Electromagnetism
- F = BIL
- Magnetic flux density and tesla
- Velocity selection
- Flux patterns on a long straight wire, flat circular coil and long solenoid
- Forces between current-carrying conductors
- Presence of ferrous core in solenoid and transformers

Electromagnetic Induction
- not tested at all.

Alternating currents
- not tested at all.

Quantum Physics
- electron diffraction experiment
- de broglie’s equation
- energy-level questions
- emission and absorption spectrums
- T + R =1 relationship
- Wave function
- Scanning tunneling microscope
- X-ray spectrum

Lasers
- not tested at all.

Semiconductors
- intrinsic conductors
- valence bands, conduction bands and forbidden bands
- Resistance vs. T graph of intrinsic conductors

Nuclear physics
- alpha-scattering experiment
- conservation in nuclear processes

Radioactivity
- spontaneous and random nature of nuclear decay
- random nature of radioactive decay from fluctuations in count rate
- background radiation
- nature of alpha, beta and gamma radiation.
- Activity and decay constant
- The exponential graph and relation of nuclear decay
- Half-life
- Effects both direct and indirect of ionizing radiation on living tissues and cells.


~ WeiXue