Q23 (UPPCS/2021) Science & Technology › Basic Science (Physics, Chemistry, Biology)

With reference to the radioactivity, which of the following statements is/are correct ?
1. Radioactivity is a nuclear property.
2. Hydrogen bomb is prepared on the principle of nuclear fission.
Select the correct answer using the codes given below.
Codes :

Explanation

Statement 1 is correct. Radioactivity is a nuclear property and a spontaneous physical phenomenon. It involves the decay of an unstable atomic nucleus, which emits particles or electromagnetic radiation (α, β, or γ rays) to attain stability. This process is intrinsic to the nucleus and is not affected by external factors like temperature, pressure, or chemical combinations.

Statement 2 is incorrect. A Hydrogen bomb (thermonuclear bomb) is based on the principle of nuclear fusion. It involves the fusing of isotopes of hydrogen (deuterium and tritium) under extremely high temperatures and pressure to form helium, releasing vast amounts of energy. Nuclear fission, the splitting of heavy nuclei, is the principle used in Atomic bombs and is only used as a 'trigger' in hydrogen bombs to create the necessary heat for fusion.

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Question map

With reference to the radioactivity, which of the following statements is/are correct ?
1. Radioactivity is a nuclear property.
2. Hydrogen bomb is prepared on the principle of nuclear fission.
Select the correct answer using the codes given below.
Codes :

Explanation

SIMILAR QUESTIONS

With reference to 'Isotopes', which of the following statements is/are correct ?
1. Atoms with identical atomic numbers but different atomic mass numbers are known as isotopes.
2. Protium, Deuterium and Tritium are isotopes of carbon.
Select the correct answer from the code given below :
Code :

The known forces of nature can be divided into four classes, viz. gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?

Which of the following statements with regard to Isotopes and Isobars is/are correct? 1. Isotopes have same mass number. 2. Isobars have same atomic number. Select the correct answer using the code given below :

Which of the following statements about hydrogen is /are correct? 1. Hydrogen has three isotopes of which protium is the most common. 2. Hydrogen ion (H+) exists freely in solution. 3. Dihydrogen, H2, acts as a reducing agent. Select the correct answer using the code given below.

Change set

Question map

With reference to the radioactivity, which of the following statements is/are correct ?1. Radioactivity is a nuclear property.2. Hydrogen bomb is prepared on the principle of nuclear fission.Select the correct answer using the codes given below.Codes :

Explanation

SIMILAR QUESTIONS

With reference to 'Isotopes', which of the following statements is/are correct ?1. Atoms with identical atomic numbers but different atomic mass numbers are known as isotopes.2. Protium, Deuterium and Tritium are isotopes of carbon.Select the correct answer from the code given below :Code :

The known forces of nature can be divided into four classes, viz. gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?

Which of the following statements with regard to Isotopes and Isobars is/are correct? 1. Isotopes have same mass number. 2. Isobars have same atomic number. Select the correct answer using the code given below :

Which of the following statements about hydrogen is /are correct? 1. Hydrogen has three isotopes of which protium is the most common. 2. Hydrogen ion (H+) exists freely in solution. 3. Dihydrogen, H2, acts as a reducing agent. Select the correct answer using the code given below.

With reference to the radioactivity, which of the following statements is/are correct ?
1. Radioactivity is a nuclear property.
2. Hydrogen bomb is prepared on the principle of nuclear fission.
Select the correct answer using the codes given below.
Codes :

With reference to 'Isotopes', which of the following statements is/are correct ?
1. Atoms with identical atomic numbers but different atomic mass numbers are known as isotopes.
2. Protium, Deuterium and Tritium are isotopes of carbon.
Select the correct answer from the code given below :
Code :