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Science Quiz | General Knowledge Multiple Choice Questions and Answers | Page-22

106 When a person sitting on a swing stands up the swing, the frequency of oscillation
A increases
B decreases
C becomes infinite
D does not change

Answer: Option [A]
107 Forged documents are detected by
A beta rays
B infra-red rays
C ultraviolet rays
D gamma rays

Answer: Option [C]


108 When light passes from air to glass its speed
A decreases
B increases and does not depend upon the density of glass
C speed increases and depends upon the density of the glass
D does not change

Answer: Option [A]
109 A green leaf when seen in red light would appear to be
A white
B cyan
C magenta
D black

Answer: Option [D]
110 The wave theory of light cannot explain the phenomenon of
A scattering
B polarisation
C reflection
D photoelectric effect

Answer: Option [D]

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