हिंदी

Would the Bohr formula for the H-atom remain unchanged if proton had a charge (+4/3)e and electron a charge (−3 /4)e, where e = 1.6 × 10–19C. Give reasons for your answer. - Physics

Advertisements
Advertisements

प्रश्न

Would the Bohr formula for the H-atom remain unchanged if proton had a charge (+4/3)e and electron a charge (−3/4)e, where e = 1.6 × 10–19C. Give reasons for your answer.

टिप्पणी लिखिए

उत्तर

According to Bohr, for an electron around a stationary nucleus, the electrostatic force of attraction provides the necessary centripetal force.

i.e. `1/(4πε_0) (q_1q_2)/r^2 = (mv^2)/r` ......(i)

Hence the magnitude of electrostatic force F ∞ qx q2

If the proton had a charge (+4/3)e and the electron a charge (−3/4)e, then the Bohr formula for the H-atom remains the same, since the Bohr formula involves only the product of the charges which remain constant for given values of charges.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 12: Atoms - Exercises [पृष्ठ ७८]

APPEARS IN

एनसीईआरटी एक्झांप्लर Physics [English] Class 12
अध्याय 12 Atoms
Exercises | Q 12.17 | पृष्ठ ७८

संबंधित प्रश्न

A classical atom based on ____________ is doomed to collapse.


An atom has a nearly continuous mass distribution in a ____________ but has a highly non-uniform mass distribution in ____________.
(Thomson’s model/Rutherford’s model)


Answer the following question, which help you understand the difference between Thomson’s model and Rutherford’s model better.

Is the average angle of deflection of α­-particles by a thin gold foil predicted by Thomson’s model much less, about the same, or much greater than that predicted by Rutherford’s model?


Answer the following question, which help you understand the difference between Thomson’s model and Rutherford’s model better.

Is the probability of backward scattering (i.e., scattering of α-particles at angles greater than 90°) predicted by Thomson’s model much less, about the same, or much greater than that predicted by Rutherford’s model?


Alpha particles used in Geiger-Marsden experiment were obtained from ______.


Which of the following transition in a hydrogen atom emit photon of the highest frequency:


Assume that there is no repulsive force between the electrons in an atom but the force between positive and negative charges is given by Coulomb’s law as usual. Under such circumstances, calculate the ground state energy of a He-atom.


The energy levels of a certain atom for first, second and third levels are E, 4E/3 and 2E, respectively. A photon of wavelength λ is emitted for a transition 3 `→` 1. What will be the wavelength of emission for transition 2 `→` 1?


According to Bohr model, magnetic field at centre (at the nucleus) of a hydrogen atom due to motion of electron in the ninth orbit is proportional to:


An alpha nucleus of energy `1/2`mv2 bombards a heavy nuclear target of charge Ze. Then the distance of closest approach for the alpha nucleus will be proportional to ______.

  1. v2
  2. `1/"m"`
  3. `1/"v"^2`
  4. `1/"Ze"`

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×