AIPMT 2014 | Atoms and Nuclei Question 42 | Physics

AIPMT 2014

MCQ (Single Correct Answer)

-1

Out of Syllabus

A radioactive X with a half life 1.4 $$ \times $$ 10⁹ years decays to Y which is stable. A sample of the rock from a cave was found to contain X and Y in the ratio 1 : 7. The age of the rock is

1.96 $$ \times $$ 10⁹ years

3.92 $$ \times $$ 10⁹ years

4.20 $$ \times $$ 10⁹ years

8.40 $$ \times $$ 10⁹ years

AIPMT 2014

MCQ (Single Correct Answer)

-1

Hydrogen atom in ground state is excited by a monochromatic radiation of $$\lambda $$ = 975 $$\mathop A\limits^ \circ $$. Number of spectral lines in the resulting spectrum emitted will be

0 10

AIPMT 2014

MCQ (Single Correct Answer)

-1

The binding energy per nucleon of and nuclei are 5.60 MeV and 7.06 MeV respectively. In the nuclear reaction

$${}_3^7Li + {}_1^1H \to {}_2^4He + _2^4He + Q$$

the value of energy Q released is

19.6 MeV

$$-$$ 2.4 MeV

8.4 MeV

17.3 MeV

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

How does the Binding Energy per nucleon vary with the increase in the number of nucleons ?

Decrease continuously with mass number.

First decreases and then increases with increase in mass number.

First increases and then decreases with increase in mass number.

increases continuously with mass number.

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