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UNIT TEST -O1, NUCLEAR PHYSICS & PERTICAL PHYSICS, F.M-SO, , - Qt, ) Consider the reaction,, , @ L°—r*+y dD 2° — A° +, , Which of the following statement is true? [Assume that particle are, produced in | = 0 states), , © Reaction-| is allowed by angular conservation, , © Reaction-II is allowed by angular conservation, , © Reaction and Il, both are allowed by angular momentum, , © Reaction-| and Il, both are forbidden by angular momentum,, , time:50 mint, , S, , , , at, , Consider the nuclear reaction, e~ +e” ——> y, , Q2, , [Given: E,= 1.02 MeV, m; =m; =0.511 MeV], then the above reaction is, , © Not allowed as energy is not conserved, , (© Not allowed as momentum Is not conserved, , © Itis allowed as all conservation law is valid, , © lis not allowed as neighter energy nor momentum is conserved.

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a3, Consider the decay of, , @ =— AP + dD 2° — A° +y, then,, , © Reaction-| is strong decay, © Reaction-Il is weak decay, , © Reaction-| is electromagnetic decay while reaction-II is weak decay, , CO Reaction-tt is electromagnetic decay, aN, J, , a4, , For, t°,J,=-5,B=0, , For, = \2-5,B=+1, , For, A’, =0,B=+1, Then, the strangeness number of particle, O S$ =+1, fork’, S =-2, for =", S =-1, for A°, , O § =+1, fork®, S =+1, for =", S =0, for A°, O § =+2, for k®, S =-2, for =", S =0, for A°, , O § =0, fork’, S =-1, for =", S =0, for A°

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Qs, , If the baryon X has following properties, Q = —1, S = —2, then the quark, content of X is, , O dss, © dds, O dss, , O uss, , Qs, , Consider reaction,, , @ ponte’ +y, ap x re +y, © Reaction-t is allowd, , © Reaction-t is not allowed due to violation of angular momentum, © Reaction-tt is allowed, , oO Reaction-Il is not allowed due to violation of Lepton number., cw!, , A conservation law that is not universal but applies only to certain kinds, of interaction is conservation of, , Qz, , © Lepton number, © Baryon number, © Spin, , © Strangeness

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as, The conservation law violated by the reaction, p——+ 7° +e” is conservation of, , © energy, CO linear momentum, , © lepton number and baryon number, © angular momentum., , as, , If the reaction, 7° +n—> 5°+X, , is governed by strong interaction, then the quark content of particle X is, O @, , O sd, , O usd, , O ud, , », , , , , , , , , , °c", , In the strong decay 4°° ——+ P + 2°, the possible values of the orbstal angular momentum quantum, amber im the final state is (4 deacy m / = 0 state), , Q.10, , , , LYN *, O41, O1, O12, C2