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

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

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

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

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

Answer: Option [C]