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प्रश्न
The positively charged part of the atom possesses most of the mass in ______.
विकल्प
Rutherford’s model
both the models
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उत्तर
The positively charged part of the atom possesses most of the mass in both the models.
संबंधित प्रश्न
Thorium 90Th232 is disintegrated into lead 82Pb200. Find the number of α and β particles emitted in disintegration.
The size of the atom in Thomson’s model is ______ the atomic size in Rutherford’s model.
In the ground state of ______ electrons are in stable equilibrium, while in ______ electrons always experience a net force.
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?
Answer the following question, which help you understand the difference between Thomson’s model and Rutherford’s model better.
In which model is it completely wrong to ignore multiple scattering for the calculation of average angle of scattering of α-particles by a thin foil?
The total energy of an electron in the ground state of the hydrogen atom is -13·6 eV. Its total energy, when a hydrogen atom is in the first excited state, is ______.
Answer the following question.
A charged particle q is moving in the presence of a magnetic field B which is inclined to an angle 30° with the direction of the motion of the particle. Draw the trajectory followed by the particle in the presence of the field and explain how the particle describes this path.
Answer the following question.
Explain briefly how Rutherford scattering of α-particle by a target nucleus can provide information on the size of the nucleus.
Alpha particles used in Geiger-Marsden experiment were obtained from ______.
An automobile moves on a road with a speed of 54 km h−1. The radius of its wheels is 0.45 m and the moment of inertia of the wheel about its axis of rotation is 3 kg m2. If the vehicle is brought to rest in l 5s, the magnitude of average torque transmitted by its brakes to the wheel is:
The ratio of the frequencies of the long wave length its of Lyman Balmer series of hydrogen spectrum is
Which of the following transition in a hydrogen atom emit photon of the highest frequency:
The ratio active Nude 7N13 decays 6C13 through the emission of
An alpha particle has
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.
A narrow beam of protons, each having 4.1 MeV energy is approaching a sheet of lead (Z = 82). Calculate:
- the speed of a proton in the beam, and
- the distance of its closest approach
Choose the correct option from the following options given below:
In the Rutherford experiment, α-particles are scattered from a nucleus as shown. Out of the four paths, which path is not possible?

How is the size of a nucleus found experimentally? Write the relation between the radius and mass number of a nucleus.
