AIPMT 2005 | Atoms and Nuclei Question 93 | Physics

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AIPMT 2005

MCQ (Single Correct Answer)

-1

Out of Syllabus

Which one of the following pairs of nuclei are isotones ?

₃₄Se⁷⁴, ₃₁Ga⁷¹

₃₈Sr⁸⁴, ₃₈Sr⁸⁶

₄₂Mo⁹², ₄₀Zr⁹²

₂₀Ca⁴⁰, ₁₆S³²

AIPMT 2005

MCQ (Single Correct Answer)

-1

In any fission process the ratio

mass of fission products

mass of parent nucleus

equal to 1

greater than 1

less than 1

depends on the mass of the parent nucleus.

AIPMT 2005

MCQ (Single Correct Answer)

-1

Fission of nuclei is possible because the binding energy per nucleon in them

increases with mass number at low mass numbers

decreases with mass number at low mass numbers

increases with mass number at high mass numbers

decreases with mass number at high mass numbers.

AIPMT 2005

MCQ (Single Correct Answer)

-1

Energy levels A, B and C of a certain atom corresponding to increasing values of energy i.e. E_A < E_B < E_C. If $$\lambda $$₁, $$\lambda $$₂ and $$\lambda $$₃ are wavelengths of radioations corresponding to transitions C to B, B to A and C to A respectively, which of the following relations is correct?

$${\lambda _3} = {\lambda _1} + {\lambda _2}$$

$${\lambda _3} = {{{\lambda _1}{\lambda _2}} \over {{\lambda _1} + {\lambda _2}}}$$

$${\lambda _1} + {\lambda _2} + {\lambda _3} = 0$$

$${\lambda _3}^2 = {\lambda _1}^2 + {\lambda _2}^2$$

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