One mark questions for 12th Science CBSE Physics
part-1
- Define electrical power.
- Is kWh a unit of power?
- What is seebeck effect
- Name one weak electrolyte.
- Define current sensitivity of a galvanometer.
- Define SI unit of electric charge.
- Define the term dipole moment.
- Define the volt.
- Define SI unit of capacitance.
- State Kirchoff?s laws for electrical circuits.
- What is wheatstone?s bridge?
- What is the principle of meter bridge
- What is back e.m.f.?
- What is electroplating?
- Define SI unit of magnetic field.
- Give principle of cyclotron.
- What is a shunt?
- Name an ideal voltmeter.
- Name the elements of earth?s magnetic field.
- What is angle of dip at poles?
part-2
- What is tangent law
- What are ferrites?
- What is hysteresis?
- What is self induction?
- What are eddy currents?
- Define one Henry.
- Define mutual inductance.
- What is average value of A.C. over one full cycle?
- What is capacitive reactance?
- What are wattles current?
- What is a transformer?
- Why is core of transformer laminated?
- What are microwaves?
- Who discovered infrared waves?
- Why are microwaves used in RADAR?
- What is snell?s law?
- Write two conditions for total internal refraction.
- What is angle of minimum deviation?
- What is dispersion?
- Write down the lens maker?s formula.
part-3
- What is interference of waves?
- State Huygens?s principle.
- Define fringe width.
- What are coherent sources?
- Who first proposed wave theory of light?
- What is diffraction?
- What is Fresnel diffraction?
- What is Fresnel distance?
- What is plane polarized light?
- What is a Polaroid?
- What is threshold frequency?
- What is wave function?
- What are nuclear forces?
- Is free neutron a stable particle?
- Define binding energy per nucleon.
- What is Geiger?s law?
- Define a curie.
- What is a breedor reactor?
- Write truth table of NOR gate.
- What is knee voltage in a junction diode?
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