Advertisements
Advertisements
प्रश्न
Give the results of Rutherford alpha scattering experiment.
Advertisements
उत्तर
- Most of the alpha particles are undeflected through the gold foil and went straight.
- Some of the alpha particles are deflected through a small angle.
- A few alpha particles (one in thousand) are deflected through an angle more than 90°.
- Very few alpha particles returned back (back scattered) -that is, deflected back by 180°.
APPEARS IN
संबंधित प्रश्न
Splitting of spectral lines in an electric field is called __________.
According to the Bohr Theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon?
In J.J. Thomson e/m experiment, a beam of electron is replaced by that of muons (particle with same charge as that of electrons but mass 208 times that of electrons). No deflection condition is achieved only if
The ratio of the wavelengths for the transition from n =2 to n = 1 in Li++, He+ and H is ______.
The electric potential between a proton and an electron is given by V = V0 In `("r"/"r"_0)`, where r0 is a constant. Assume that Bohr atom model is applicable to potential, then a variation of radius of nth orbit rn with the principal quantum number n is
Write down the postulates of Bohr atom model.
Write down the draw backs of the Bohr atom model.
What is distance of closest approach?
Define impact parameter.
In the Bohr atom model, the frequency of transitions is given by the following expression
v = `"Rc" (1/"n"^2 - 1/"m"^2)`, where n < m
Consider the following transitions:
| Transitions | m → n |
| 1 | 3 → 2 |
| 2 | 2 → 1 |
| 3 | 3 → 1 |
Show that the frequency of these transitions obey sum rule (which is known as Ritz combination principle).
