Which is not used as atomic fuel?
A. Uranium
B. Thorium
C. Plutonium
D. Lead
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Which one of the following is not a property of the X-rays?
A. They are deflected by electric fields
B. They are not deflected by magnetic fields
C. They have high penetration length in matter
D. Their wavelength is much smaller than that of visible light
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Which Indian organization, related to the development of nuclear energy, is situated at Kolkata?
A. Bhabha Atomic Research Centre (BARC)
B. Raja Ramanna Centre for Advanced Technology (RRCAT)
C. Variable Energy Cyclotron Centre (VECC)
D. Atomic Minerals Directorate for Exploration and Research (AMD)
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India's first atomic power station is
A. BARC
B. Tarapur Atomic Power Station
C. Narora Atomic Power Station
D. None of the above
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Which one of the following is not correct?
A. Theory of evolution was propounded by Charles Darwin
B. The breaking apart of the nucleus of an atom is called fusion
C. Dry ice' is nothing but solid carbon dioxide
D. Telephone was invented by Graham Bell
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Stars obtain their energy from
1. Nuclear fusion
2. Gravitational contraction
3..Chemical reaction
4. Nuclear fission
Select your answer:
A. Only 1 and 2
B. Only 1, 2 and 3
C. Only 1 and 4
D. Only 2 and 4
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Consider the statements.
1. Photon is a particle of light.
2. Mass of photon is not defined.
3. Speed of photon is as the speed of light.
4. Photons are charged.
Which options is/are correct?
A. 1 and 2
B. 1, 2, 3 and 4
C. 1, 2 and 3
D. 1 and 3
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Assertion (A) Amongst alpha, beta and gamma rays, α-particle has maximum penetrating power.
Reason (R) The alpha particle is heavier than beta and gamma rays.
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true, but R is not the correct explanation of A
C. A is true, but R is false
D. A is false, but R is true
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An element has an atomic weight of W and an atomic number of N. The number of protons in the nucleous of its atom is
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Consider the following statements.
1. The Nuclear Security Summits are periodically held under the aegis of the United Nations.
2. The International Panel on Fissile Materials is an organ of International Atomic Energy Agency.
Which of the statements given above is/are correct?
A. Only 1
B. Only 2
C. Both 1 and 2
D. Neither 1 nor 2
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The ultimate product of radioactive disintegration of uranium is
A. Lead
B. Radium
C. Thorium
D. Plutonium
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Who founded India's three stage Nuclear Power Programme?
A. Dr. Homi Bhabha
B. Vikram Sarabhai
C. K. Kasturirangan
D. A.P.J. Abdul Kalam
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Russia has agreed recently to construct how many units of nuclear reactors at Kundankulam in Tamil Nadu?
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The threshold frequency of material is
A. the minimum frequency of light which can emit photoelectrons from materials
B. the maximum frequency of light which can emit photoelectrons from materials
C. The minimum energy required for the emission of photoelectron from a material
D. None of the above
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Which phenomena shows the particle nature of light?
A. Diffraction
B. Interference
C. Photoelectric effect
D. Polarisation
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The width of depletion layer of a p-n junction
A. decreases with light doping
B. increases with heavy doping
C. is independent of applied voltage
D. is increased under reverse bias
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In nuclear reactor, heavy water is used as
A. coolant
B. fuel
C. moderator
D. atomic smasher
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Hydrogen bomb was developed by
A. Edward Teller
B. Bernor Bon Bron
C. J Robert Oppenheimer
D. Samual Cohen
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One of these particles is claimed to have invented which rebut the Einstein's theory of relativity.
A. Micro-wave Photon
B. Neutrino
C. Liquid crystal
D. Light emitting diode
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To meet its rapidly growing energy demand some opine that India should pursue research and development on thorium as the future fuel of nuclear energy. In this context, what advantage does thorium hold over uranium?
1. Thorium is far more abundant in nature than uranium.
2. On the basis of per unit mass of mined mineral, thorium can generate more energy compared to natural uranium.
3. Thorium produces less harmful waste compared to uranium.
Which of the statement(s) given above is/are correct?
A. Only 1
B. Only 2 and 3
C. Only 1 and 3
D. 1, 2 and 3
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