Physics GK

Q126) Which alloy is used to make clock pendulums:A) MischmetalB) InvarC) BrassD) None of the Above Answer: B Q127) When the red light is exposed

Q101) _______________ waves are used in echocardiography:A) UltrasonicB) InfrasonicC) Between 20 to 2000 hzD) None of These Answer: AQ102) What is the frequency of direct

Q081) MHO is the unit of _________ of a substance:A) ConductanceB) ResistivityC) ConductivityD) None of These Answer: AQ082) Electric wires are generally coated with:A) PolypropyleneB)

Q061) The presence of free ___________ in a substance makes it a conductor of electricity:A) PositronsB) ProtonsC) ElectronsD) Neutrons Answer: C Q062) During fog we

Q041) The momentum of a body depends:A) Only on its VelocityB) Only on its MassC) Both A and BD) None of the Above Answer: CQ042)

Q021) __________ is an aperture which controls light passage in the eye:A) Sclerotic CoatB) PupilC) IrisD) Blind Spot Answer: C Q022) Rad/sec is the unit