AIPMT 2008 | Atoms and Nuclei Question 77 | Physics

AIPMT 2008

MCQ (Single Correct Answer)

-1

If M(A; Z), M_p and M_n denote the masses of the nucleus $${}_Z^AX,$$ proton and neutron respectively in units of u (1 u = 931.5 MeV/c²) and BE represents its bonding energy in MeV, then

M(A, Z) = ZM_p + (A $$-$$ Z)M_n $$-$$ BE

M(A, Z) = ZM_p + (A $$-$$ Z)M_n + BE/c²

M(A, Z) = ZM_p + (A $$-$$ Z)M_n $$-$$ BE/c²

M(A, Z) = ZM_p + (A $$-$$ Z)M_n + BE

AIPMT 2008

MCQ (Single Correct Answer)

-1

Out of Syllabus

Two nuclei have their mass numbers in the ratio of 1 : 3. The ratio of their nuclear densities would be

$${\left( 3 \right)^{1/3}}:1$$

1 : 1

1 : 3

3 : 1

AIPMT 2008

MCQ (Single Correct Answer)

-1

The ground state energy of hydrogen atom is $$-$$ 13.6 eV. When its electron is in the first excited state, its excitation energy is

10.2 eV

3.4 eV

6.8 eV

AIPMT 2008

MCQ (Single Correct Answer)

-1

Out of Syllabus

Two radioactive materials X₁ and X₂ have decay constants $$5\lambda $$ and $$\lambda $$ respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of X₁ to that X₂ will be 1/e after a time

1/4$$\lambda $$

e/$$\lambda $$

$$\lambda $$

$${1 \over 2}\lambda $$

PREVIOUS NEXT

NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution