Neil's bohr

When Neils Bohr shook hand with Werner Heisenber, what kind of force they exerted?

If the speed of electron in the first bohr orbit of hydrogen atom is x then the speed of the electron in the third Bohr orbit of hydrogen is

The circumference of the 4^(th) bohr orbit of hydrogen is 5.32 nm .The wavelenght of electron revolving in the first bohr orbit will be

If the speed of electron in the first bohr orbit of hydrogen atom is x then the speed of the electron in the third Bohr orbit of hydrogen is

if an electron is revolving in its bohr orbit having bohr radius of 0.529Å , then the radius of third orbit is

Which of these conclusions drawn by Cornelius van Neil in his experiment on purple -sulphur bacteria is correct ?

In Bohr's model of hydrogen atom ,

The energy on the first Bohr.s orbit is 27.2 eV. What will be the energy in the third orbit?

In Bohr.s model of hydrogen atom, radius of the first orbit of an electron is r_(0) . Then, radius of the third orbit is:

Find the number of waves made by a Bohr electron in one complete revolution in the 3rd Bohr orbit.