General Science for Competitive Exam
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06/03/2021
Q28 Isotone means
a)Same no of protons
b)Same no of positrons
c)Same no of neutrons
d)None of these
08/06/2020
Q26.What is unit of loudness
a)Bel
b)Decibel
c)Phon
d)All of the above
08/06/2020
Q25.What is the speed of sound in Air
a)330m/s
b)332m/s
c)334m/s
d336m/s
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