Atoms and Nuclei [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 57 - 61 of 149
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Question 57
Question MCQ▾
How many electrons, protons, and neutrons are there in a nucleus of atomic number 11 and mass number 24?
Choices
Choice (4) | Response | |
---|---|---|
a. | 12,11, 13 | |
b. | 11,11, 13 | |
c. | 11,13, -12 | |
d. | 11,12, 13 |
Question 58
Question MCQ▾
If mass equivalent to one mass of proton is completely converted into energy then determine the energy produced?
Choices
Choice (4) | Response | |
---|---|---|
a. | 911.49 MeV | |
b. | 931.49 MeV | |
c. | 431.49 MeV | |
d. | 731.49 MeV |
Question 59
Question MCQ▾
If the mass of3 Li7 is 7.0163 a. m. u. , the binding energy per nucleon for3 Li7 will be,
Choices
Choice (4) | Response | |
---|---|---|
a. | zero | |
b. | 39.25 MeV | |
c. | 5.6 MeV | |
d. | 1 MeV |
Question 60
Question MCQ▾
Fission of nuclei is possible because the binding energy per nucleon in them,
Choices
Choice (4) | Response | |
---|---|---|
a. | Increases with mass number at high mass number | |
b. | Decreases with mass number at low mass numbers | |
c. | Increases with mass number at low mass numbers | |
d. | Decreases with mass number at high mass number |
Question 61
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 |