Atoms and Nuclei-Mass Defect [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 2 of 2

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Question 1

Question MCQ▾

Consider the decay of radium- (Ra226) atom into an alpha particle and radon- (Rn222) . Then, what is the mass defect of the reaction-

Mass of radium -226 atom = 226.0256 u

Mass of radon - 222 atom = 222.0715 u

Mass of helium - 4 atom = 4.0026 u

Choices

Choice (4)Response

a.

0.0083 u

b.

0.0053 u

c.

0.083 u

d.

Question does not provide sufficient data or is vague

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Question 2

Question MCQ▾

If the mass defect in the formation of helium from hydrogen is 0.5% , then the energy obtained, in kWh, in forming helium from 1 kg of hydrogen will be,

Choices

Choice (4)Response

a.

1.25 ⨯ 106

b.

1.25

c.

125 ⨯ 104

d.

1.25 ⨯ 108

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