AIPMT 2011 Mains | Atoms and Nuclei Question 60 | Physics

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

Out of the following which one is not a possible energy for a photon to be emitted by hydrogen atom according to Bohr's atomic model?

0.65 eV

1.9 eV

11.1 eV

13.6 eV

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 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

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$$v$$

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