From the statements given below:
$(A)$ The angular momentum of an electron in $n^{\text{th}}$ orbit is an integral multiple of $\hbar$.
$(B)$ Nuclear forces do not obey inverse square law.
$(C)$ Nuclear forces are spin dependent.
$(D)$ Nuclear forces are central and charge independent.
$(E)$ Stability of nucleus is inversely proportional to the value of packing fraction.
Choose the correct answer from the options given below:

  • A
    $(A), (B), (C), (D)$ only
  • B
    $(A), (C), (D), (E)$ only
  • C
    $(A), (B), (C), (E)$ only
  • D
    $(B), (C), (D), (E)$ only

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Match List $I$ of the nuclear processes with List $II$ containing parent nucleus and one of the end products of each process and then select the correct answer using the codes given below the lists:
List $I$ List $II$
$P$. Alpha decay $1$. ${ }_{8}^{15} O \rightarrow{ }_{7}^{15} N + \dots$
$Q$. $\beta^{+}$ decay $2$. ${ }_{92}^{238} U \rightarrow{ }_{90}^{234} Th + \dots$
$R$. Fission $3$. ${ }_{83}^{185} Bi \rightarrow{ }_{82}^{184} Pb + \dots$
$S$. Proton emission $4$. ${ }_{94}^{239} Pu \rightarrow{ }_{57}^{140} La + \dots$

Codes: $P \quad Q \quad R \quad S$

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