AIPMT 2004 | Atoms and Nuclei Question 93 | Physics

AIPMT 2004

MCQ (Single Correct Answer)

-1

If in a nuclear fusion process the masses of the fusing nuclei be m₁ and m₂ and the mass of the resultant nucleus be m₃, then

m₃ = m₁ + m₂

m₃ = $$\left| {{m_1} - {m_2}} \right|$$

m₃ < (m₁ + m₂)

m₃ > (m₁ + m₂)

AIPMT 2004

MCQ (Single Correct Answer)

-1

Out of Syllabus

The half life of radian is about 1600 years. Of 100 g of radium existing now, 25 g will remain unchanged after

4800 years

6400 years

2400 years

3200 years

AIPMT 2003

MCQ (Single Correct Answer)

-1

An electron is moving round the nucleus of a hydrogen atom in a circular orbit of radius r. The Coulomb force $$\overrightarrow F $$ between the two is

$$K{{{e^2}} \over {{r^2}}}\widehat r$$

$$ - K{{{e^2}} \over {{r^3}}}\widehat r$$

$$K{{{e^2}} \over {{r^3}}}\widehat r$$

$$ - K{{{e^2}} \over {{r^2}}}\widehat r$$

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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