[{"id":110444,"question":"The principle quantum number describes","choices":[{"text":"The distance form the nucleus","value":"A"},{"text":"The shape of the orbital","value":"B"},{"text":"The orientation of the orbital","value":"C"},{"text":"The spin of the electron","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110443,"question":"The wave length of electron as wave is 0.5 nm. What is the wave length in meter","choices":[{"text":"5 x 10<sup>-9</sup>","value":"A"},{"text":"5 x 10<sup>-12</sup>","value":"B"},{"text":"5 x 10<sup>-6</sup>","value":"C"},{"text":"5 x 10<sup>-10</sup>","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110442,"question":"Orbitals having same energy are called","choices":[{"text":"Hybrid orbitals","value":"A"},{"text":"Valence orbitals","value":"B"},{"text":"Degenerate orbitals","value":"C"},{"text":"D-orbitals","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110441,"question":"When 3p orbital is complete, the entering electron goes into","choices":[{"text":"4s","value":"A"},{"text":"3d","value":"B"},{"text":"4p","value":"C"},{"text":"4f","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110439,"question":"In the ground state of an atom, the electron is present","choices":[{"text":"In the nucleus","value":"A"},{"text":"In the second shell","value":"B"},{"text":"Nearest to the nucleus","value":"C"},{"text":"Farthest from the nucleus","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110438,"question":"Quantum number values for 2p orbitals are","choices":[{"text":"n = 2, l = 1","value":"A"},{"text":"n = 1, l = 2","value":"B"},{"text":"n = 1, l = 0","value":"C"},{"text":"n = 2, l = 0","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110437,"question":"The charge of an electron is determined by","choices":[{"text":"J.J. Thomson","value":"A"},{"text":"Crooks","value":"B"},{"text":"Perrin","value":"C"},{"text":"R.A.Millikan","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110436,"question":"Pauli's principle is applicable to","choices":[{"text":"Degenerate orbits","value":"A"},{"text":"Two electrons in the same orbital","value":"B"},{"text":"One electron","value":"C"},{"text":"None","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110434,"question":"The wave number of the light emitted by a certain source is 2 x 10<sup>6</sup>m<sup>-1</sup>. The wavelength of this light will be","choices":[{"text":"500 nm","value":"A"},{"text":"500 m","value":"B"},{"text":"200 nm","value":"C"},{"text":"5 x 10<sup>7</sup>m","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110433,"question":"The nature of the positive rays depend on","choices":[{"text":"The nature of the electrode","value":"A"},{"text":"The nature of the discharge tube","value":"B"},{"text":"The nature of the residual gas","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110432,"question":"E = hv is the","choices":[{"text":"Spectral equation","value":"A"},{"text":"Plank's equation","value":"B"},{"text":"de Broglie's equation","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110430,"question":"Splitting of spectral lines when atoms are subjected to strong electron field is called","choices":[{"text":"Zeeman effect","value":"A"},{"text":"Stark effect","value":"B"},{"text":"Photoelectric effect","value":"C"},{"text":"Compton effect","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110428,"question":"The radius of first orbit of hydrogen atom","choices":[{"text":"0.329 A°","value":"A"},{"text":"0.429 A°","value":"B"},{"text":"0.529 A°","value":"C"},{"text":"0.229 A°","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110426,"question":"Which of the following is not charged particle","choices":[{"text":"Proton","value":"A"},{"text":"Electron","value":"B"},{"text":"Neutron","value":"C"},{"text":"Hydrogen nucleus","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110424,"question":"Which of the following is not a sub-atomic particle","choices":[{"text":"Electron","value":"A"},{"text":"Proton","value":"B"},{"text":"Neutron","value":"C"},{"text":"Deuteron","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110423,"question":"Which of the following is not a property of cathode rays","choices":[{"text":"They can produce x-rays when they strike a heavy metal anode","value":"A"},{"text":"They can cause reduction reaction","value":"B"},{"text":"They produce fluorescence in rare earth and minerals","value":"C"},{"text":"They comprise neutral particles","value":"D"},{"value":"E"}],"correctAnswer":4}]