Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason \bo {R}. Assertion A : The nuclear density of nuclides { }_5^{10} {\B},{ }_3^6 {\Li},{ }_{26}^{56} {\Fe},{ }_{10}^{20} {\Ne} and { }_{83}^{209} {\Bi} can be arranged as \rho_{ {\Bi}}^{ {\N}} > \rho_{ {\Fe}}^{ {\N}} > \rho_{ {\Ne}}^{ {\N}} > \rho_{ {\B}}^{ {\N}} > \rho_{ {\Li}}^{ {\N}}. Reason R : The radius R of nucleus is related to its mass number A as {\R}= {\R}_0 {\A}^{1 \/ 3}, where {\R}_0 is a constant. In the light of the above statement, choose the correct answer from the options given below : [30-Jan-2023 Shift 2]

Correct Answer is : A is false but R is true

Both \bo {A} and \bo {R} are true and {\R} is the correct explanation of \bo {A}

\bo {A} is false but \bo {R} is true

\bo {A} is true but \bo {R} is false

Both \bo {A} and \bo {R} are true but \bo {R} is NOT the correct explanation of \bo {A}

JEE Mains 30-Jan-2023 Shift 2 Solved Paper

Section: Physics

Question : 4 of 90

Marks: +1, -0

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The nuclear density of nuclides ‌510B,‌36‌Li,‌2656‌Fe,‌1020‌Ne and ‌83209‌Bi can be arranged as ρBiN>ρFeN>ρNeN>ρBN>ρLiN.
Reason R : The radius R of nucleus is related to its mass number A as R=R0A1∕3, where R0 is a constant.
In the light of the above statement, choose the correct answer from the options given below :

[30-Jan-2023 Shift 2]

Both A and R are true and R is the correct explanation of A
A is false but R is true
A is true but R is false
Both A and R are true but R is NOT the correct explanation of A

Validate

Go to Question:

Prev Question

Next Question