Refer to BITSAT Physics Nuclei MCQs provided below. BITSAT Full Syllabus Physics MCQs with answers available in Pdf for free download. The MCQ Questions for Full Syllabus Physics with answers have been prepared as per the latest syllabus, BITSAT books and examination pattern suggested in Full Syllabus by BITSAT, NCERT and KVS. Multiple Choice Questions for Nuclei are an important part of exams for Full Syllabus Physics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for BITSAT Full Syllabus Physics and also download more latest study material for all subjects
MCQ for Full Syllabus Physics Nuclei
Full Syllabus Physics students should refer to the following multiple-choice questions with answers for Nuclei in Full Syllabus. These MCQ questions with answers for Full Syllabus Physics will come in exams and help you to score good marks
Nuclei MCQ Questions Full Syllabus Physics with Answers
Question: After two hours, one-sixteenth of the starting amount of a certain radioactive isotope remained undecayed. The half life of the isotope is
- a) 15 minutes
- b) 30 minutes
- c) 45 minutes
- d) 4 hours
Answer: 30 minutes
Question: When 92U235 undergoes fission, 0.1% of its original mass is changed into energy. How much energy is released if 1 kg of 92U235 undergoes fission?
- a) 9 × 1010 J
- b) 9 × 1011 J
- c) 9 × 1012 J
- d) 9 × 1013 J
Answer: 9 × 1013 J
Question: A radioactive element X converts into another stable element Y. Half life of X is 2 hrs. Initially only X is present. After time t, the ratio of atoms of X and Y is found to be 1 : 4, then t in hours is
- a) 2
- b) 4
- c) between 4 and 6
- d) 6
Answer: between 4 and 6
Question: The mass of 7N15 is 15.00011 amu, mass of 8O16 is 15.99492 amu and mP = 1.00783 amu. Determine binding energy of last proton of 8O16
- a) 2.13 MeV
- b) 0.13 MeV
- c) 10 MeV
- d) 12.13 MeV
Answer: 12.13 MeV
Question: In an ore containing uranium, the ratio of U238 to Pb206 is 3. Calculate the age of the ore, assuming that all the lead present in the ore is the final stable product of U238. Take the halflife of U238 to be 4.5 × 109 yr.
- a) 1.6 × 193 yr
- b) 1.5 × 104 yr
- c) 1.867 × 109 yr
- d) 2 × 105 yr
Answer: 1.867 × 109 yr
Question: A nucleus of uranium decays at rest into nuclei of thorium and helium. Then :
- a) The helium nucleus has less momentum than the thorium nucleus
- b) The helium nucleus has more momentum than the thorium nucleus
- c) The helium nucleus has less kinetic energy than the thorium nucleus
- d) The helium nucleus has more kinetic energy than the thorium nucleus
Answer: The helium nucleus has more kinetic energy than the thorium nucleus
Question: Boron rods in a nuclear reactor are used to
- a) Absorb excess neutrons
- b) Absorb alpha particle
- c) Slow down the reaction
- d) Speed up the reaction
Answer: Absorb excess neutrons
Question: A mixture consists of two radioactive materials A1 and A2 with half lives of 20 s and 10 s respectively. Initially the mixture has 40 g of A1 and 160 g of A2. The amount of the two in the mixture will become equal after
- a) 60 s
- b) 80 s
- c) 20 s
- d) 40 s
Answer: 40 s
Question: If the total binding energies of 
nuclei are 2.22, 28.3, 492 and 1786 MeV respectively, identify the most stable nucleus of the following
- a)
- b)
- c)
- d)
Answer:
Question: Which one is correct about fission?
- a) Approx. 0.1% mass converts into energy
- b) Most of energy of fission is in the form of heat
- c) In a fission of U235 about 200 eV energy is released
- d) On an average, one neutron is released per fission of U235
Answer: Approx. 0.1% mass converts into energy
Question: Which of the following is best nuclear fuel
- a) thorium 236
- b) plutonium 239
- c) uranium 236
- d) neptunium 239
Answer: plutonium 239
Question: The activity of a radioactive sample is measured as N0 counts per minute at t = 0 and N0/e counts per minute at t = 5 minutes. The time (in minutes) at which the activity reduces to half its value is
- a) loge 2 / 5
- b)
- c) 5 log 102
- d) 5 loge 2
Answer: 5 loge 2
Question: Nuclear energy is released in fission since binding energy per nucleon is
- a) Sometimes larger and sometimes smaller
- b) Larger for fission fragments than for parent nucleus
- c) Same for fission fragments and nucleus
- d) Smaller for fission fragments than for parent nucleus
Answer: Larger for fission fragments than for parent nucleus
Question: The binding energy of the innermost electron tungsten is 40 keV. To produce characteristic Xrays using a tungsten target in an X-ray tube the potential difference V between the cathode and the anticathode should be-
- a) V < 40 kV
- b) V ≤4 kV
- c) V > 40 kV
- d) V > / < 40 kV
Answer: V > 40 kV
Question: A radioactive nucleus undergoes a series of decay according to the scheme 
If the mass number and atomic number of ‘A’ are 180 and 72 respectively, then what are these numbers for A4
- a) 172 and 69
- b) 174 and 70
- c) 176 and 69
- d) 176 and 70
Answer: 172 and 69
Question: Half life of a radioactive substance is 20 minute. Difference between points of time when it is 33% disintegrated and 67% disintegrated is approximately
- a) 40 minute
- b) 10 minute
- c) 15 minute
- d) 20 minute
Answer: 20 minute
Question: The Binding energy per nucleon of 
and 
nuclei are 5.60 MeV and 7.06 MeV, respectively. In the nuclear reaction 
the value of energy Q released is :
- a) 19.6 MeV
- b) – 2.4 MeV
- c) 8.4 MeV
- d) 17.3 MeV
Answer: 17.3 MeV
Question: A nucleus of uranium decays at rest into nuclei of thorium and helium. Then :
- a) The helium nucleus has less momentum than the thorium nucleus
- b) The helium nucleus has more momentum than the thorium nucleus
- c) The helium nucleus has less kinetic energy than the thorium nucleus
- d) The helium nucleus has more kinetic energy than the thorium nucleus
Answer: The helium nucleus has more kinetic energy than the thorium nucleus
Question: Boron rods in a nuclear reactor are used to
- a) Absorb excess neutrons
- b) Absorb alpha particle
- c) Slow down the reaction
- d) Speed up the reaction
Answer: Absorb excess neutrons
Question: Which of the following is best nuclear fuel
- a) thorium 236
- b) plutonium 239
- c) uranium 236
- d) neptunium 239
Answer: plutonium 239
More Study Material
BITSAT Full Syllabus Physics Nuclei MCQs
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MCQs for Physics BITSAT Full Syllabus Nuclei
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Nuclei MCQs Physics BITSAT Full Syllabus
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Nuclei BITSAT Full Syllabus MCQs Physics
Regular MCQs practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of Nuclei concepts. MCQs play an important role in developing understanding of Nuclei in BITSAT Full Syllabus. Students can download and save or print all the MCQs, printable assignments, practice sheets of the above chapter in Full Syllabus Physics in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Full Syllabus Physics MCQ Test for the same chapter
BITSAT MCQs Physics Full Syllabus Nuclei
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Multiple Choice Questions (MCQs) for Nuclei Full Syllabus Physics are objective-based questions which provide multiple answer options, and students are required to choose the correct answer from the given choices.