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JEE Advanced 2021 Full Test 3 Paper 1

(One or More than one correct type)
This section contains 06 multiple choice questions. Each question has FOUR options (A), (B), (C) and (D). ONE OR MORE THAN ONE of these four options is(are) correct.

Question : 8

Total: 54

Choose the correct statements:

If an electron is accelerated from rest through a potential different 'V' its de Broglie wavelength becomes λ=
h
√2meV
photoelectrons are emitted from metal surface when wavelength is above threshold wavelength.
stationary orbits are those orbits in which electron waves form standing wave.
X -rays have the highest penetration ability in all electronic spectrum.

Validate

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