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Question:- One Joule is equal to A. 105 ergs B. 103 ergs C. 107 ergs D. 1011 ergs
Answer:- Option C
Question:- Kilowatt is a unit to measure A. work B. power C. electricity D. current
Answer:- Option B
Question:- Electric current is measure by A. commutator B. anemometer C. ammeter D. voltmeter
Answer:- Option C
Question:- A chronometer measures A. colour contrast B. sound waves C. time D. water waves
Answer:- Option C
Question:- Nautical mile is a unit of distance used in A. navigation B. road mile C. astronomy D. measuring the boundaries of a nation
Answer:- Option A
Question:- Knot is a unit of speed of which of the following? A. Aeroplane B. Light waves C. Ship D. Sound waves
Answer:- Option C
Question:- Which of the following is used as a moderator in nuclear reactor? A. Thorium B. Graphite C. Radium D. Ordinary water
Answer:- Option B
Question:- Which among the following is a positively charged particle emitted by a radioactive element? A. Beta ray B. Alpha ray C. Cathode ray D. Gamma ray
Answer:- Option B
Question:- Atoms are composed of A. electrons and protons B. electrons only C. protons only D. electrons and nuclei
Answer:- Option D
Question:- In an atomic explosion, enormous energy is released which is due to A. conversion of chemical energy into heat energy B. conversion of mechanical energy into nuclear energy C. conversion of mass into energy D. conversion of neutrons into protons
Answer:- Option C
Question:- Isotopes are separated by A. crystallisation B. sublimation C. distillation D. filtration
Answer:- Option C
Question:- The wavelength of X-rays is of the order of A. 10 micron B. 1 angstrom C. 1 cm D. 1 m
Answer:- Option B
Question:- Mesons are found in A. Laser beam B. X-rays C. Gamma rays D. Cosmic rays
Answer:- Option D
Question:- Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material? A. Thorium B. Radium C. Plutonium D. Radan
Answer:- Option A