AIPMT 2003 | Atoms and Nuclei Question 107 | Physics

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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

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

Out of Syllabus

A nuclear reaction given by

_ZX^A $$ \to $$ _z+1Y^A + _$$-$$1e⁰ + $$\overline v $$ represents

$$\beta $$-decay

$$\gamma $$-decay

fusion

fission

AIPMT 2003

MCQ (Single Correct Answer)

-1

In which of the following systems will the radius of the first orbit (n = 1) be minimum ?

doubly ionized lithium

singly ionized helium

deuterium atom

hydrogen atom

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