A particle of rest mass mo has a kinetic energy k. Its de-Broglie wavelength is- hc hc (A) A = (B) 1 = Vk+ 2moc? Vk (k + 2moc²) (D) 1 = Vk (C) A = V2moc2
A particle of rest mass mo has a kinetic energy k. Its de-Broglie wavelength is- hc hc (A) A = (B) 1 = Vk+ 2moc? Vk (k + 2moc²) (D) 1 = Vk (C) A = V2moc2
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Transcribed Image Text:ure- 113. A particle of rest mass mo has a kinetic energy k.
= At,
tain
Its de-Broglie wavelength is-
hc
hc
(A) 2 =
(B ) λ
Vk + 2moc?
Vk (k + 2moc2)
(C) =
(D) =
V 2moc2
114. The angular momentum of an atomic electron is-
(A) Not quantized
nent
(B) Quantized in magnitude and direction both
(C) Quantized in magnitude only
(D) Quantized in direction only
the
115. A hydrogen atom remains in its ground state when
electron-
(A) Resides inside the nucleus
(B) Escape from the atom
(C) Is in its first orbital
(D) Does not orbit round but is stationary
116. For a spherically symmetric probability cloud of
an electron-
(A) Principal quantum number is zero
(B) Orbital quantum number is zero
(C) Magnetic quantum number is zero
(D) Spin quantum number is zero
ave
cles
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