Physics ICS Part 2 Online MCQ's Test

A device that shows the visible path of ionizing particle is called.

• GM counter A
• Solid state detector B
• Scalar C
• Wilson cloud chamber D

Coulomb's force is:

• Conservative force A
• None conservative force B
• Similar to frictional force C
• None of the above D

Which device is used as a rectifier?

• Capacitor A
• Transistor B
• Diode C
• Transformer D

The materialization of energy take place in the process of.

• Photo electric effect A
• Compton Effect B
• Pair production C
• Annihilationof matter D

Light emitting diodes are made from semiconductors.

• Silicon A
• Germanium B
• Carbon C
• Gallium arsenide D

The combined effect of resistance and reactance is knows as.

• Inductance A
• Conductance B
• Resistance C
• Impedance D

Resistivity at a given temperature depends upon.

• Area of cross section A
• Length B
• Nature of material of conductor C
• Both length and area D

The mass of protons is:

• 1.675 x 10^-27 kg A
• 1.693 x 10^-27 kg B
• 1.673 x 10^-31 kg C
• 1.673 x 10^-27 kg  D

The emf induced by the motion of a conductor across a magnetic field is called:

• Motional emf A
• Rotational emf B
• Induced emf C
• All of above D

At high frequency, the current through a capacitor is

• Small A
• Infinity B
• Zero C
• Large D

Electron volt is unit of:

• Chemical energy A
• Potential energy B
• Nuclear energy C
• heat energy D

Soft magnetic material is

• Sodium A
• Steel B
• Iron C
• Copper D

The electric field lines are closer where the field is

• Strong A
• Weak B
• Uniform C
• Variable D

Transistor was discovered by

• Young A
• Curie B
• John Bardeen C
• Shale's D

• 
  A
• 
  B
• 
  C
• None of the above D

Curie temperature is a point where :

• Diamagnetism changes to paramagnetism A
• Paramagnetism changes to Diamagnetism B
• Ferromagnetism changes to paramagnetism C
• Paramagnetism changes to Ferromagnetism D

The energy of photon for photoelectric effect is less than

• 1 MeV A
• 2 MeV B
• 5 MeV C
• 8 MeV D