The De-Brogli wave is...

The De-Brogli wave is

a mechanical wave

An electromagnetic wave

neither mechanical wave nor electromagnetic wave

both (1) & (2)

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The De-Broglie wave length of electron in second exited state of hydrogen atom is

The energy of separation of an electron in a hydrogen like atom in excited state is 3.4eV. The de-Broglie wave length (in Å) associated with the electron is :

Let us assume that the de-Broglie wave asssociated with an electron froms a standing wave between the atoms arranged in a one-dimensional array with nodes at each of the atomic sites. If is found that one such standing wave is formed, if the distance between the atoms of the array is 3 Å . A similar standing wave is again formed, if d is increased to 3.5 Å but not for any intermediate value of d. Find the energy of the electrons in electron volts and the least value of d for which the standing wave of the type described above can from.

The de Broglie waves are associated with moving particles. These particle may be

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If kinetic energy of a proton is increased nine times the wavelength of the de - Broglie wave associated with it would become :-

The de Broglie wave length of a riffle bullet of mass 2 grams moving with a velocity of 2m/sec of

The de Broglie wave length associated with a particle of mass 1 mg moving with a velocity of 1m/sec is

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AAKASH INSTITUTE ENGLISH-Mock Test 38: PHYSICS-Example

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