Physics - Set-04 -Quiz for Competitive Examination

Question. No:1
  • Question-Freezing mixture is a mixture ____
    Answer-A-which solidifies water
    Answer-B-Freezes at 0 degree C
    AnswerC-which produces very low temperature
    AnswerD-which is used in medicine
    Correct Answer-C
    Question. No:2
  • Question-Which of the following is wrong?
    Answer-A-Sound Travels in Straight Line
    Answer-B-Sound is form of energy
    AnswerC-Sound travels in the form of waves
    AnswerD-sound travels faster in vacuum than in air
    Correct Answer-D
    Question. No:3
  • Question-Find the only wrong statement in the following:-
    Answer-A-Light travels with a speed greater than that of sound
    Answer-B-Light cannot travel trhough vacuum
    AnswerC-Light travels in a straight line
    AnswerD-Light has no weight
    Correct Answer-B
    Question. No:4
  • Question-The Radius of Curvature of a plane mirror is________:-
    Answer-A-Zero
    Answer-B-Infinite
    AnswerC-Negaive
    AnswerD-Finite
    Correct Answer-B
    Question. No:5
  • Question-If a wire is streched to maje its length three times,its resistance will become__________
    Answer-A-Three times
    Answer-B-One-third
    AnswerC-Nine times
    AnswerD-One-month
    Correct Answer-C
    Question. No:6
  • Question-When glass rod is rubbed with silk piece the charge acquired on the glass rod is__________
    Answer-A-Positive
    Answer-B-Negative
    AnswerC-Nutral
    AnswerD-None of these
    Correct Answer-A
    Question. No:7
  • Question-A freely suspended magnet takes its direction_________
    Answer-A-north-south
    Answer-B-north-east
    AnswerC-east-west
    AnswerD-south-east
    Correct Answer-A
    Question. No:8
  • Question-Magnetic poles always exist as___________
    Answer-A-Dipole
    Answer-B-Monopole
    AnswerC-no-pole
    AnswerD-none of these
    Correct Answer-A
    Question. No:9
  • Question-Which one of the following substances is the magnetic substances_________
    Answer-A-Mercury
    Answer-B-Iron
    AnswerC-Gold
    AnswerD-Silver
    Correct Answer-B
    Question. No:10
  • Question-A magnet can be demagnetised by___________
    Answer-A-Hammering the magnet
    Answer-B-Putting it in the water
    AnswerC-Cooling it
    AnswerD-Putting in contact with iron
    Correct Answer-A
    Question. No:11
  • Question-Which one of these is a temporary magnet?
    Answer-ABar Magnet
    Answer-BElectro Magnet
    Answer-CU shaped Magnet
    Answer-DHorse-shoe Magnet
    Correct Answer-D
    Question. No:12
  • Question-Magnetic effect of current was discovered by________
    Answer-AFaraday
    Answer-BOersted
    Answer-CAmpere
    Answer-DBohr
    Correct Answer-B
    Question. No:13
  • Question-The attraction of iron filings in a magnet is maximum at________
    Poles of the magnet
    Answer-BMiddle part ofthe magnet
    Answer-CAll places in the magnet
    Answer-Dnone of these
    Correct Answer-A
    Question. No:14
  • Question-The device used for producing electric current is called a_______
    Answer-AGenerator
    Answer-BGalvanometer
    Answer-CAmmeter
    Answer-DMotor
    Correct Answer-A
    Question. No:15
  • Question-The essential difference between an AC generator and a DC generator is that_______
    Answer-AAC Generator has an electromagnet while a DC generator has permanent magnet
    Answer-BDC Generator will generate a hight voltage
    Answer-CAC generator will generate hight voltage
    Answer-DAC generator has slip rings while the DC generator has a cummutator
    Correct Answer-B
    Question. No:16
  • Question-A transformer used to reduce the alternating voltage is __________
    Answer-Astep-up transformer
    Answer-Bstep-down transformer
    Answer-Cboth step-up and step-down transformers
    Answer-Dnone of these
    Correct Answer-B
    Question. No:17
  • Question-A tesla is equivalent to a __________
    Answer-Anewton per coulomb
    Answer-Bnewton per ampere-meter
    Answer-Campere per newton
    Answer-Dnewton per ampere-second
    Correct Answer-B
    Question. No:18
  • Question-A tesla is equivalent to a __________
    Answer-Anewton per coulomb
    Answer-Bnewton per ampere-meter
    Answer-Campere per newton
    Answer-Dnewton per ampere-second
    Correct Answer-B
    Question. No:19
  • Question-When a bar magnet is broken into two pieces__________
    Answer-AWe will have a single pole on each piece
    Answer-BEach piece will have two like poles
    Answer-CEach piece will be lose magnetism
    Answer-DEach piece will have two unlike poles
    Correct Answer-D
    Question. No:20
  • Question-The earth Magnetic field is maximum __________
    Answer-Aat poles of the earth
    Answer-Bat centre of the earth
    Answer-Cat outersurface of the earth
    Answer-Dnone of the above
    Correct Answer-A