AIPMT 2011 Prelims | Atoms and Nuclei Question 63 | Physics

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AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

Out of Syllabus

A radioactive nucleus of mass M emits a photon of frequency $$v$$ and the nucleus recoils. The recoil energy will be

Mc² $$-$$ h$$v$$

h²$$\upsilon $$²/2Mc²

zero

h$$v$$

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

Out of Syllabus

A nucleus $${}_n^mX$$ emits one $$\alpha $$ particle and two $$\beta $$ particles. The resulting nucleus is

$${}_{n - 4}^{m - 6}Z$$

$${}_n^{m - 6}Z$$

$${}_n^{m - 4}X$$

$${}_{n - 2}^{m - 4}Y$$

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

Fusion reaction takes place at high temperature because

nuclei break up at high temperature

atoms get ionised at high temperature

kinetic energy is high enough to overcome the coulomb repulsion between nuclei

molecules break up at high temperature

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

The binding energy per nucleon in deuterium and helium nuclei are 1.1 MeV and 7.0 MeV, respectively. When two deuterium nuclei fuse to form a helium nucleus the energy released in the fusion is

23.6 MeV

2.2 MeV

28.0 MeV

30.2 MeV

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