AIPMT 2003 | Atoms and Nuclei Question 104 | Physics

The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u = atomic mass unit). The binding energy of $${}_2^4$$ He is
(Given helium nucleus mass $$ \approx $$ 4.0015 u.)

0.0305 J

0.0305 erg

28.4 MeV

0.061 u

AIPMT 2003

MCQ (Single Correct Answer)

-1

Out of Syllabus

A sample of radioactive element has a mass of 10 g at an instant t = 0. The approximate mass of this element in the sample after two mean lives is

1.35 g

2.50 g

3.70 g

6.30 g

AIPMT 2003

MCQ (Single Correct Answer)

-1

The volume occupied by an atom is greater than the volume of the nucleus by a factor of about

10¹

10⁵

10¹⁰

10¹⁵

AIPMT 2003

MCQ (Single Correct Answer)

-1

Solar energy is mainly caused due to

burning of hydrogen in the oxygen

fission of uranium present in the Sun

fusion of protons during synthesis of heavier elements

gravitational contraction

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