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Science Quiz | General Knowledge Multiple Choice Questions and Answers | Page-20

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Download in pdf physics general knowledge quiz questions and answers or GK objective questions with answers. These multiple choice questions and answers include mcqs on myopia, sonar, eclipses etc.
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(96) Persons suffering from myopia are advised to use
[A] plano-concave lens
[B] convex lens
[C] concave lens
[D] plano-convex lens

Comment

Answer: Option [C]
(97) The device used for locating submerged objects under sea is
[A] radar
[B] sonar
[C] laser
[D] all of the above

Comment

Answer: Option [B]

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(98) A device which is used to limit the current in an electrical circuit is called a
[A] fuse
[B] grid
[C] conductor
[D] none of the above

Comment

Answer: Option [A]
(99) A transformer
[A] converts DC to AC
[B] converts AC voltage to DC voltage
[C] converts electrical energy into mechanical energy
[D] is used to decrease or increase AC voltage

Comment

Answer: Option [D]
(100) Eclipses occur due to which optical phenomena ?
[A] refraction
[B] diffraction
[C] reflection
[D] rectilinear propagation

Comment

Answer: Option [C]

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