Competitive Exams General Knowledge Questions and Answers on Science | GkSeries

(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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