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Multiple Choice Questions GK on Nuclear science

Question 1 : Who suggested that most of the mass of the atom is located in the nucleus?

A. Einstein

B. Rutherford

C. Bohr

D. Thompson

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Nuclear Science,

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Question 2 : Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?

A. Radan

B. Plutonium

C. Radium

D. Thorium

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Question Listed : Thorium, Nuclear Science,

Question 3 : Which of the following shows the masses of the three elementary particles in decreasing order?

A. Leptons, Mesons Baryons

B. Baryons, Mesons, Leptons

C. Mesons, Baryons, Leptons

D. Leptons, Baryons, Mesons

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Question Listed : Baryon, Meson, Lepton, Nuclear Science,

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Question 4 : Which of the following rays are more penetrating?

A. X-rays

B. Gamma rays

C. Alpha rays

D. Beta rays

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Question Listed : Gamma Ray, Nuclear Science,

Question 5 : Which of the following is used as a moderator in nuclear reactor?

A. Ordinary water

B. Radium

C. Graphite

D. Thorium

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Question Listed : Graphite, Nuclear Science,

Question 6 : Which of the following has a least penetrating power?

A. Gamma rays

B. Alpha particles

C. Beta Particles

D. All have same penetrating power

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Question Listed : Alpha Particle, Nuclear Science,

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Question 7 : Which among the following is a positively charged particle emitted by a radioactive element?

A. Gamma ray

B. Cathode ray

C. Alpha ray

D. Beta ray

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Question Listed : Alpha Ray, Nuclear Science,

Question 8 : What is the wavelength of visible spectrum?

A. 1300 - 3000 angstrom

B. 3900 - 7600 angstrom

C. 7800 - 8000 angstrom

D. 8500 - 9800 angstrom

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Question Listed : Nuclear Science,

Question 9 : The wavelength of X-rays is of the order of

A. 1 m

B. 1 cm

C. 1 angstrom

D. 10 micron

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Question Listed : Nuclear Science,

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Question 10 : The isotope of uranium capable of sustaining chain reaction is

A. U-238

B. U-239

C. U-245

D. U-235

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Question Listed : Nuclear Science,

Question 11 : The dark lines in the solar spectrum are due to

A. absence of corresponding wavelengths from the light emitted by the core of the sun

B. absorption of corresponding wavelengths by the prism used in the photograph

C. destructive interference between waves of certain definite wavelengths

D. absorption of corresponding wavelengths by the outer layers of the sun

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Question Listed : Nuclear Science, Sun,

Question 12 : The age of most ancient geological formations is estimated by

A. Uranium - lead method

B. C14?method

C. Potassium - argon method

D. Ra - Si method

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Question Listed : Uranium, Lead Method, Nuclear Science,

Question 13 : Nuclear fission is caused by the impact of

A. electron

B. deuteron

C. proton

D. neutron

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Question Listed : Neutron, Nuclear Science,

Question 14 : No two electrons in an atom can have the same set of four quantum numbers is

A. Paulis exclusion principle

B. Aufbau principle

C. Bohrs law

D. Newtons law

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Question Listed : Nuclear Science,

Question 15 : Mesons are found in

A. Cosmic rays

B. Gamma rays

C. X-rays

D. Laser beam

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Question Listed : Cosmic Ray, Nuclear Science,

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