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Competitive Exams General Knowledge Questions and Answers on Science | GkSeries

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Free download as PDF Competitive Exams General Knowledge Questions and Answers on Science or solved MCQs with answers. These quiz objective questions are helpful for competitive exams SSC, UPSC, IAS, IPS, CDS, NDA, Railways or RRB etc.
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(56) The idea that hospitals should be very clean was suggested by:
[A] Lister
[B] Leeuvenhock
[C] Hooke
[D] Mendel

Comment

Answer: Option [A]
(57) Sound waves above 20,000 Hz are called:
[A] Overtones
[B] Infrasonic
[C] Supersonic
[D] None of these

Comment

Answer: Option [C]

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(58) Atom bomb is based on the principle of:
[A] Nuclear fusion
[B] Nuclear fission
[C] Radioactivity
[D] Nuclear fusion and fission both

Comment

Answer: Option [B]
(59) Stainless steel is an alloy of steel and:
[A] Strauntium
[B] Copper
[C] Platinum
[D] Chromium

Comment

Answer: Option [D]
(60) The colour discharge tube for advertisement mainly contains:
[A] Xenon
[B] Argon
[C] Neon
[D] Helium

Comment

Answer: Option [C]

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