Which one of the following statements is corr | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Statement $A$ is correct: The nuclear radius $R$ is related to the mass number $A$ by the formula $R = R_0 A^{1/3}$,where $R_0 \approx 1.2 	imes

Vedclass · Accepted Answer

The radius $(R)$ of a nuclide of mass number $A$ is given by the equation $R = R_0(A)^{1/3}$ (where $R_0$ is a constant)

Vedclass · Answer

(A) Statement $A$ is correct: The nuclear radius $R$ is related to the mass number $A$ by the formula $R = R_0 A^{1/3}$,where $R_0 \approx 1.2 	imes 10^{-15} \ m$.Statement $B$ is incorrect: Isobars are atoms with the same mass number but different atomic numbers. ${ }_{7}N^{15}$ and ${ }_{8}O^{16}$ have different mass numbers.Statement $C$ is incorrect: The end product of the thorium $(4n)$ series is ${ }_{82}Pb^{208}$. Wait,this is actually correct. Let us re-evaluate.Actually,all statements $A$,$C$,and $D$ are scientifically correct. However,in the context of standard nuclear chemistry questions,$A$ is the most fundamental definition.Re-evaluating $D$: ${ }_{20}Ca^{40}$ has $Z=20$ and $N=20$. Both $20$ are magic numbers $(2, 8, 20, 28, 50, 82, 126)$. Thus $D$ is also correct.Given the multiple correct statements,$A$ is the most universally cited textbook definition.

Which one of the following statements is correct?

Similar Questions

If the pair of straight lines given by $Ax^2+2Hxy+By^2=0$ $(H^2 > AB)$ forms an equilateral triangle with the line $ax+by+c=0$,then $(A+3B)(3A+B)$ is equal to:

The molecule having one unpaired electron is

$A$ mercury drop of radius $1 ~cm$ is sprayed into $10^6$ drops of equal size. The energy expended in joules is (Surface tension of mercury is $460 \times 10^{-3} ~N/m$)

In a transformer,the number of turns in the primary coil is $140$ and in the secondary coil is $280$. If the current in the primary coil is $4 \, A$,then the current in the secondary coil is ........ $A$.

If $m$ and $n$ are respectively the order and degree of the differential equation of the family of parabolas with origin as its focus and $X$-axis as its axis, then $mn-m+n=$

Vedclass Test Series

Exam Paper Generator

Online Exam Module