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

96 Persons suffering from myopia are advised to use
A plano-concave lens
B convex lens
C concave lens
D plano-convex lens

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

Answer: Option [B]
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

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

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

Answer: Option [C]


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