Physics question and answers for October 18, 2023
- Q 10 Na23 being unstable decay into stable Na23 If the nuclear mass are m 0Na23 22 994466 amu m Na23 22 989770 amu and mass of electron 0 000545 amu...
- Q NEET UG 2019 Odisha The radius of the first permitted Bohr orbit for the electron in a hydrogen atom equals 0 51 A and its ground state energy equals 13...
- Q The electric quadrupole moment of a nuclear charge distribution which is of the shape of an 270 ellipsoid is given by p b a Total nuclear charge Ze Average nuclear...
- Q For a CE transistor amplifier the audio signal voltage across the collector resistance of 1 KQ is 4 0 V Suppose the current amplification factor of the transistor is 100...
- Q 2 Consider the following two statements a The binding energy per nucleon is practically independent of mass number for nuclei of middle mass number 30 A 170 b Binding energy...
- Q the ratio of Population of the two states in He Ne laser that Produces light of wavelength 6328 Ao at 27 o C Option 1 2 1 x 10 29...
- Q nudeon 16 Which of the following are correct for binding energy per uneleon AEbn AE curve plotted as a function of mass number A a Maximum occurs A 50 CA...
- Q 16 The particle antineutrino released during electron decay satisfies the law of conservation of 1 Mass energy 2 Linear momentum 3 Spin angular momentum 4 All of these
- Q The nucleus 92 U234 splits exactly in half in a fission reaction in which two neutrons are released The resultant nuclei are UPSEAT 2004 a Pd116 c 45 Rh 16...
- Q 19 Cadmium and Boron rods are used in a nuclear reactor to 1 slow down neutrons 2 absorb excess number of thermal neutrons 3 speed up neutrons 4 absorb fast...
- Q The energy of a photon is equal to the kinetic energy of a proton The energy of photon is E If be the de Broglie wavelength of the proton and...
- Q and carrying a magnetic moment The system is immersed in a magnetic 90 The ideas of statistical mechanics induction field B Each particle may then exist in one of the...
- Q D The binding energy per nucleon of deuteron and a particles are X and x2 respectively The energy released in the following reaction will be 1H 1H 2He4 Q 1...
- Q Two radioactive elements R and S disintegrate as R P AR 4 5 10 1 years As 3 10 years Starting with number of atoms of R and Sin the...
- Q The binding energy per nucleon for C 2 is 7 68 MeV and that for C 3 is 7 5 MeV The energy required to remove a neutron from C13...
- Q 4 Half life of a radioactive substance A is two times the half life of another radioactive substance B Initially the number of nuclei of A and B are NA...
- Q Beta plus decay is shown below Assuming that X and Y both are neutral atoms and energy carried by vis negligible the Q value of the process is e v...
- Q Mass numbers of the elements A B C and are 30 60 90 and 120 respectively The specific binding energy of them are 5 MeV 8 5 MeV 8 MeV...
- Q Which of the following statement s is are correct A The rest mass of a stable nucleus is less than the sum of the rest masses of its separated nucleons...
- Q 3 676 66 mm 4 5766 6 nm 9 Pure Si at 500 K has equal number of electron n 29 and hole n concentrations of 1 5 x 10...
- Q In a radioactive decay A is converting into B and B is converting into C It is given that t Onuclei of B and C are not present decay constant...
- Q 3 10 2 4 24 2 Two large parallel plates are connected with the terminal of 100 V power supply These plates have a fine hole at the centre An...
- Q A neutron with kinetic energy of T 10 Mev activates a nuclear reaction n C4 Be a whose threshold energy is Th 6 17 Mev The K E approx value...
- Q bit to third Bohr orbit Find the value of Z b De Consider the following fussion reaction H H 2He If 20 MeV of energy is released p fusion reaction...
- Q The radioactive sources A and B of half lives of 2hr and 4hr respectively initially contain the same number of radioactive atoms At the end of 2 hours their rates...
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