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Atomic Structure : Jee Mains Questions

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Atomic Structure : Jee Mains Questions with Answers Atomic Structure : Jee Mains Questions with Answers These are JEE Mains questions for chapter Atomic Structure from previous year papers . Atomic Structure : Jee Mains Questions   The de Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 metres per  second is approximately (Planck's constant, h = 6.63 x 10 -34 Js) (1) 10 -31 metre(2) 10 -16 metres (3) 10 -25 metres(4) 10 -33  metres                            (MAINS-2003) Ans :-- (4) In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inter-orbit jumps of the electron for Bohr orbits in an atom of hydrogen 1.)      5→2               2.)  4→1             ...