Vidyalelo
Physics GK · all questions

Modern Physics
practice.

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Which is not used as atomic fuel?

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Which one of the following is not a property of the X-rays?

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Which Indian organization, related to the development of nuclear energy, is situated at Kolkata?

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India's first atomic power station is

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Which one of the following is not correct?

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Stars obtain their energy from
1. Nuclear fusion
2. Gravitational contraction
3..Chemical reaction
4. Nuclear fission
Select your answer:

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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?

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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.

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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?

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The ultimate product of radioactive disintegration of uranium is

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Who founded India's three stage Nuclear Power Programme?

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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

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Which phenomena shows the particle nature of light?

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The width of depletion layer of a p-n junction

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In nuclear reactor, heavy water is used as

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Hydrogen bomb was developed by

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One of these particles is claimed to have invented which rebut the Einstein's theory of relativity.

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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?

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