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Q. Give the drawbacks of Sommerfeld’s atom model?
Drawbacks of Sommerfeld's atom model:
(i) It couldn't explain the distribution and arrangement of electrons in atoms.
(ii) Sommerfeld's model was incapable to explain the spectra of alkali metals such as sodium and potassium etc.
(iii) It couldn't explain Zeeman and Stark effect.
(iv) This model doesn't give any explanation for the intensities of the spectral lines.
When the current in the primary coil of 400 turns of a magnetic circuit, enhances linearly from10mA to 35mA in 100ms, an e.m.f. of 75mV is induced into the secondary coil of 240 tu
In plane transmission grating the width of the each slit is same to half of the opaque portion. Which order of spectra will be absent?
when the body is uniform motion
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Q. What are the changes that take place at the superconducting transition temperature? At the transition temperature the subsequent changes are observed (i) The electrical res
The atomic number of an element represents: (1) Number of neutrons in the nucleus (2) Number of protons in the nucleus (3)Atomic weight of element (4)Valency of el
explaination of voltage doubler full wave?
What do you mean by the ratio of the frequency of fourth overtone to the fundamental frequency of a stretched string?
An a.c. voltage E = E 0 sin cot is applied across an inductor L. Get an expression for current I. Draw a labelled diagram of Van de Graff generator. Verify its principle of wor
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