Nature is symmetric under spatial translation. As a result, a)Angular momentum i

Question

Nature is symmetric under spatial translation. As a result,
a)Angular momentum is conserved.
b)energy is conserved
c)Linear momentum is conserved.
d)It also is inversion symmetric.
hysical processes are not always symmetric under congugation (matter-antimatter), parity-reversal, or time-reversal. These transformations are said to have     symmetry.
a)broken
b)non-
c)partial
d)incomplete
Besides baryons, what other class of particles is conserved throughout a physics process?
a)Gluons
b)Leptons.
c)Pions.
d)Photons.

Explanation / Answer

the correct option is (b).

Besides baryons, Lepton is conserved throughout a physics process, because, anti particles are needed to conserve.

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