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Nuclear And Particle Physics Mock Tests

14 questions available

Nuclear And Particle Physics Mock Test 1

Questions: 14

Sample Questions

GATE Physics
The nuclear force between two nucleons is:
A stronger than the electromagnetic force at short distances (~1 fm)
B weaker than the electromagnetic force at all distances
C identical to the gravitational force
D a purely Coulombic force
GATE Physics
In beta-minus decay, the emitted electron spectrum has a continuous energy distribution because:
A The decay energy is shared among the electron, antineutrino, and recoiling nucleus
B The electron is always emitted with the same energy
C Energy is not conserved in beta decay
D The nucleus absorbs all the energy
GATE Physics
In the semi-empirical mass formula (liquid drop model), which term favors asymmetric neutron-proton ratios (N ≠ Z)?
A Volume term
B Surface term
C Asymmetry term
D Pairing term
GATE Physics
The half-life of a radioactive substance is related to its decay constant λ by:
A T_{1/2} = ln(2)/λ
B T_{1/2} = 1/λ
C T_{1/2} = ln(2)·λ
D T_{1/2} = λ/ln(2)
GATE Physics
The alpha decay of Uranium-238 (²³⁸U) produces:
A Thorium-234 (²³⁴Th) and a helium nucleus
B Radon-222 (²²²Rn) and a helium nucleus
C Lead-206 (²⁰⁶Pb) and a helium nucleus
D Uranium-235 (²³⁵U) and a helium nucleus
GATE Physics
In the standard model of particle physics, which of the following is a lepton:
A electron
B up quark
C gluon
D pion
GATE Physics
The beta decay process n → p + e⁻ + ν̄ₑ involves which fundamental interaction:
A weak interaction
B electromagnetic interaction
C strong interaction
D gravitational interaction
GATE Physics
The range of the strong nuclear force is determined by:
A the mass of the pion (π meson)
B the mass of the electron
C the speed of light
D the fine structure constant

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