Physics - CSIR NET, GATE & JEST: IFAS
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Physics - CSIR NET, GATE & JEST: IFAS
792 subscribers
Physics - CSIR NET, GATE & JEST: IFAS
๐Ÿ“š ๐ƒ๐š๐ข๐ฅ๐ฒ ๐๐ซ๐š๐œ๐ญ๐ข๐œ๐ž ๐๐ฎ๐ž๐ฌ๐ญ๐ข๐จ๐ง๐˜€ ๐ญ๐จ ๐€๐œ๐ž ๐ญ๐ก๐ž ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ๐Ÿ“š๐Ÿ“
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๐—ง๐—ผ ๐—ด๐—ฒ๐˜ ๐—ฑ๐—ฎ๐—ถ๐—น๐˜† ๐—ณ๐—ฟ๐—ฒ๐—ฒ ๐—ฝ๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ฐ๐—ฒ ๐—พ๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—ต๐—ฒ๐—ฟ๐—ฒ ๐Ÿ‘‰ https://ifasonline.com/csir-net/physical-science/9
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Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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Physics - CSIR NET, GATE & JEST: IFAS
A particle of mass m is moving in a potential ๐‘‰ (๐‘Ÿ) = โˆ’ ๐‘˜ ๐‘Ÿ, where k is a positive constant. If ๐ฟโƒ— and ๐‘ denote the angular momentum and linear momentum respectively, the value of a for which ๐ด = ๐ฟโƒ— ร— ๐‘ + ๐›ผ๐‘š๐‘˜๐‘Ÿฬ‚ is a constant of motion, is
Anonymous Poll
0%
- 2
52%
-1
33%
2
14%
1
21 voters361 views
Physics - CSIR NET, GATE & JEST: IFAS
๐Ÿง  ๐’๐ญ๐ฎ๐๐ฒ ๐ฐ๐ข๐ญ๐ก ๐„๐š๐ฌ๐ž, ๐’๐ฎ๐œ๐œ๐ž๐ž๐ ๐ฐ๐ข๐ญ๐ก ๐ˆ๐…๐€๐’!
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Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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Physics - CSIR NET, GATE & JEST: IFAS
๐Ÿ“š ๐ƒ๐š๐ข๐ฅ๐ฒ ๐๐ซ๐š๐œ๐ญ๐ข๐œ๐ž ๐๐ฎ๐ž๐ฌ๐ญ๐ข๐จ๐ง๐˜€ ๐ญ๐จ ๐€๐œ๐ž ๐ญ๐ก๐ž ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ๐Ÿ“š๐Ÿ“
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๐—ง๐—ผ ๐—ด๐—ฒ๐˜ ๐—ฑ๐—ฎ๐—ถ๐—น๐˜† ๐—ณ๐—ฟ๐—ฒ๐—ฒ ๐—ฝ๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ฐ๐—ฒ ๐—พ๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—ต๐—ฒ๐—ฟ๐—ฒ ๐Ÿ‘‰ https://ifasonline.com/csir-net/physical-science/9
521 views
Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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Physics - CSIR NET, GATE & JEST: IFAS
The lattice constant of the bcc structure of sodium metal is 4.22 โ„ซ. Assuming the mass of the electron inside the metal to be the same as free electron mass, the free electron Fermi energy is closest to
Anonymous Poll
21%
3.2eV
42%
2.9eV
37%
3.5eV
0%
2.5eV
19 voters456 views
Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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Physics - CSIR NET, GATE & JEST: IFAS
๐Ÿ“š ๐ƒ๐š๐ข๐ฅ๐ฒ ๐๐ซ๐š๐œ๐ญ๐ข๐œ๐ž ๐๐ฎ๐ž๐ฌ๐ญ๐ข๐จ๐ง๐˜€ ๐ญ๐จ ๐€๐œ๐ž ๐ญ๐ก๐ž ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ๐Ÿ“š๐Ÿ“
..
๐—ง๐—ผ ๐—ด๐—ฒ๐˜ ๐—ฑ๐—ฎ๐—ถ๐—น๐˜† ๐—ณ๐—ฟ๐—ฒ๐—ฒ ๐—ฝ๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ฐ๐—ฒ ๐—พ๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—ต๐—ฒ๐—ฟ๐—ฒ ๐Ÿ‘‰ https://ifasonline.com/csir-net/physical-science/9
604 views
Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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Physics - CSIR NET, GATE & JEST: IFAS
Two different 2ร—2 matrices A and B are found to have the same eigenvalues. It is then correct to state that A=SBS^(-1) where S can be a
Anonymous Poll
19%
traceless 2ร—2 matrix
42%
Hermitian 2ร—2 matrix
33%
unitary 2ร—2 matrix
6%
arbitrary 2ร—2 matrix
36 voters530 views
Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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Physics - CSIR NET, GATE & JEST: IFAS
๐Ÿ“š ๐ƒ๐š๐ข๐ฅ๐ฒ ๐๐ซ๐š๐œ๐ญ๐ข๐œ๐ž ๐๐ฎ๐ž๐ฌ๐ญ๐ข๐จ๐ง๐˜€ ๐ญ๐จ ๐€๐œ๐ž ๐ญ๐ก๐ž ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ๐Ÿ“š๐Ÿ“
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๐—ง๐—ผ ๐—ด๐—ฒ๐˜ ๐—ฑ๐—ฎ๐—ถ๐—น๐˜† ๐—ณ๐—ฟ๐—ฒ๐—ฒ ๐—ฝ๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ฐ๐—ฒ ๐—พ๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—ต๐—ฒ๐—ฟ๐—ฒ ๐Ÿ‘‰ https://ifasonline.com/csir-net/physical-science/9
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Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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Physics - CSIR NET, GATE & JEST: IFAS
๐Ÿ“š ๐ƒ๐š๐ข๐ฅ๐ฒ ๐๐ซ๐š๐œ๐ญ๐ข๐œ๐ž ๐๐ฎ๐ž๐ฌ๐ญ๐ข๐จ๐ง๐˜€ ๐ญ๐จ ๐€๐œ๐ž ๐ญ๐ก๐ž ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ๐Ÿ“š๐Ÿ“
..
๐—ง๐—ผ ๐—ด๐—ฒ๐˜ ๐—ฑ๐—ฎ๐—ถ๐—น๐˜† ๐—ณ๐—ฟ๐—ฒ๐—ฒ ๐—ฝ๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ฐ๐—ฒ ๐—พ๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—ต๐—ฒ๐—ฟ๐—ฒ ๐Ÿ‘‰ https://ifasonline.com/csir-net/physical-science/9
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Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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โค1
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Physics - CSIR NET, GATE & JEST: IFAS
The strongest three lines in the emission spectrum of an interstellar gas cloud are found to have wavelengths ฮป_0,2ฮป_0 and 6ฮป_0 respectively, where ฮป_0 is a known wavelength. From this we can deduce that the radiating particles in the cloud behave like
Anonymous Poll
5%
free particles
45%
particles in a box
27%
harmonic oscillators
23%
rigid rotators
22 voters456 views
Physics - CSIR NET, GATE & JEST: IFAS
๐€ ๐›๐ข๐  ๐œ๐จ๐ง๐ ๐ซ๐š๐ญ๐ฎ๐ฅ๐š๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐จ ๐จ๐ฎ๐ซ ๐ฌ๐ญ๐ฎ๐๐ž๐ง๐ญ ๐Ÿ๐จ๐ซ ๐ช๐ฎ๐š๐ฅ๐ข๐Ÿ๐ฒ๐ข๐ง๐  ๐‚๐’๐ˆ๐‘ ๐๐„๐“ ! ๐Ÿ†
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