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 |
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 |