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A

Abdul 01/06/2016 in  GATE Coaching classes

The minimum wavelength of the radiation emitted in continuous X-ray spectra is ………

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A

Avinash 01/06/2016 in  GATE Coaching classes

When an electron jumps from M shell to the K shell, it gives ……… in the case of characteristic X-rays.

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D

Divya 01/06/2016 in  GATE Coaching classes

The frequency of the spectral line in the characteristic X-rays is directly proportional to the square of the atomic number of the element. This is called ………….. law.

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M

Manisha 01/06/2016 in  GATE Coaching classes

Moseley’s law has led to the discovery of new elements like …………..

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Y

Yogesh 01/06/2016 in  GATE Coaching classes

In normal population, the number atoms in the ground state is …… ….. than the excited state.

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H

Himanshu 01/06/2016 in  GATE Coaching classes

If the number atoms in the ground state is lesser than the excited state, it is called ………….

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H

Honey 01/06/2016 in  GATE Coaching classes

The life time of atoms in the excited state is normally ……………

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I

Irfan 01/06/2016 in  GATE Coaching classes

The life time of atoms in the metastable state is ………….

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Y

Yoga 01/06/2016 in  GATE Coaching classes

A ruby is a crystal of …….. , in which of Al+3 ions are replaced by Cr+3 ions.

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C

Chiranjib 01/06/2016 in  GATE Coaching classes

The wavelength of green colour is ………...

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S

Sangeetha 01/06/2016 in  GATE Coaching classes

The wavelength of red colour is ………..

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E

Elnaz 01/06/2016 in  GATE Coaching classes

He-Ne laser system consists of a quartz discharge containing helium and neon in the ratio of … ………. at a pressure of about 1mm of Hg.

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A

Akhil 01/06/2016 in  GATE Coaching classes

The wavelength of the emitted photon in the He-Ne laser system …………..

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N

Naveen 01/06/2016 in  GATE Coaching classes

The beam that is used in endoscopy is …………

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V

Vikas 01/06/2016 in  GATE Coaching classes

The beam that is used in holography is ………….

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R

Riishu 01/06/2016 in  GATE Coaching classes

The maser action is based on the principle of ……….. followed by stimulated emission.

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D

Durgesh 01/06/2016 in  GATE Coaching classes

The ……… ions are used as maser materials.

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S

Shantham 01/06/2016 in  GATE Coaching classes

Practical maser materials are often ………… ions doped as impurities in ionic crystals.

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V

Venu 01/06/2016 in  GATE Coaching classes

Maser is used in …………

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S

Sanjay 01/06/2016 in  GATE Coaching classes

In maser, the emitted photon belongs to the ………… frequencies.

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S

Sai 01/06/2016 in  GATE Coaching classes

The ratio of the radii of the first three orbits of an atom is ………….

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P

Poonam 01/06/2016 in  GATE Coaching classes

The cathode rays are a stream of …………..

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S

Shishir 01/06/2016 in  GATE Coaching classes

According to Bohr’s postulates ……….. quantity take discrete values.

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H

Hari 01/06/2016 in  GATE Coaching classes

For hydrogen atom, the minimum energy required to remove an electron from the first orbit to the outermost orbit is ………..

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S

Shilpa 01/06/2016 in  GATE Coaching classes

According to Rutherford atom model, atoms will give only ……….. spectrum.

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