# Solved papers for JEE Main & Advanced AIEEE Solved Paper-2003

### done AIEEE Solved Paper-2003

• question_answer1) In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inner-orbit jumps of the electron for Bohr orbits in an atom of hydrogen?     AIEEE  Solved  Paper-2003

A) $3\to 2$

B)                       $5\to 2$

C) $4\to 1$

D) $2\to 5$

• question_answer2) The de-Broglie wavelength of a tennis ball of mass 60g moving with a velocity of 10 m/s is approximately (Planck's constant, $h=6.63\times {{10}^{-34}}$ Js)     AIEEE  Solved  Paper-2003

A) ${{10}^{-33}}$ m

B)                       ${{10}^{-31}}$ m

C)  ${{10}^{-16}}$m

D)        ${{10}^{-25}}$ m

• question_answer3) The orbital angular momentum for an electron revolving in an orbit is given by $\sqrt{l(l+1)}\frac{h}{2\pi }$. This momentum for an s-electron will be given by

A) $+\frac{1}{2}.\,\frac{h}{2\pi }$

B) zero

C) $\,\frac{h}{2\pi }$

D) $\sqrt{2}\,.\,\frac{h}{2\pi }$

• question_answer4) Which one of the following group represents a collection of isoelectronic species? (At. no. Cs-55. Br-35)     AIEEE  Solved  Paper-2003

A)                         $N{{a}^{+}},C{{a}^{2+}},M{{g}^{2+}}$

B)       ${{N}^{3-}},{{F}^{-}},N{{a}^{+}}$

C)       Be, $A{{l}^{3+}},C{{l}^{-}}$

D)       $C{{a}^{2+}},C{{s}^{+}},Br$

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