PYQSide ExamsMy practice

Nuclei · Question 71

AIPMT 2001MCQEasy📈 Topic in 12% papers+4−1
1

Energy released in nuclear fission is due to

  1. some mass is converted into energy
  2. total binding energy of fragments is more than the binding energy of parental element
  3. total binding energy of fragments is less than the binding energy of parental element
  4. total binding energy of fragments is equal to the binding energy of parental element

Answer

(1) some mass is converted into energy

Solution

As per NCERT, in the fission of 23592U the total mass of the products is less than the total mass of the reacting nucleus and neutron.

This mass defect is converted into energy according to Einstein's relation:

E = m c2

∴ The energy released in nuclear fission is due to conversion of some mass into energy.

Answer: (1)

AIPMT 2001

Keep practising — Nuclei

2

Which rays contain (positive) charged particles?

  1. -rays
  2. -rays
  3. -rays
  4. X-rays
Out of syllabusAIPMT 2001
3

Half life of a radioactive element is 12.5 hours and its quantity is 256 g. After how much time its quantity will remain 1 g?

  1. 50 h
  2. 100 h
  3. 150 h
  4. 200 h
Out of syllabusAIPMT 2001
4

Nuclear fission is best explained by

  1. liquid drop model
  2. Yukawa -meson theory
  3. independent particle model of the nucleus
  4. proton-proton cycle
AIPMT 2000
5

For the given reaction, the particle X is 6C11 5B11 + + + X

  1. neutron
  2. anti neutrino
  3. neutrino
  4. proton
Out of syllabusAIPMT 2000
6

The relation between and T1/2 is ( T1/2 half-life)

  1. T1/2 = 2
  2. T1/2 2 =
  3. T1/2 = 1
  4. ( + T1/2) = 2
Out of syllabusAIPMT 2000

All Nuclei PYQs →

PDFDownload Nuclei PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All NEET Physics chapters
Class 11Units and MeasurementsMotion in a Straight LineMotion in a PlaneLaws of MotionWork, Energy and PowerSystem of Particles and Rotational MotionGravitationMechanical Properties of SolidsMechanical Properties of FluidsThermal Properties of MatterThermodynamics (Physics)Kinetic TheoryOscillationsWaves
Class 12Electric Charges and FieldsElectrostatic Potential and CapacitanceCurrent ElectricityMoving Charges and MagnetismMagnetism and MatterElectromagnetic InductionAlternating CurrentElectromagnetic WavesRay Optics and Optical InstrumentsWave OpticsDual Nature of Radiation and MatterAtomsNucleiSemiconductor ElectronicsExperimental Skills (Physics)