AIEEE 2003 | Structure of Atom Question 170 | Chemistry

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

5 $$\to$$ 2

4 $$\to$$ 1

2 $$\to$$ 5

3 $$\to$$ 2

AIEEE 2003

MCQ (Single Correct Answer)

-1

The de Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 meters per second is approximately

10^-31 meters

10^-16 meters

10^-25 meters

10^-33 meters

AIEEE 2003

MCQ (Single Correct Answer)

-1

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

zero

$${h \over {2\pi }}$$

$$\sqrt 2 {h \over {2\pi }}$$

$$ + {1 \over 2}{h \over {2\pi }}$$

AIEEE 2002

MCQ (Single Correct Answer)

-1