Given a sample of Radium-226 having half-life of 4 days. Find the probability, a nucleus disintegrates after 2 half lives [IIT-JEE 2006]

(1) 1              (2) 1/2            (3) 1.5             (4) 3/4

Concept Questions :-

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Complete the equation for the following fission process-

${U}_{92}^{235}+{n}_{0}^{1}\to S{r}_{38}^{90}+........$

(1)                       (2) $X{{e}_{{}_{54}}^{145}}^{}$

(3) $X{{e}_{{}_{57}}^{142}}^{}$                                   (4) $X{{e}_{{}_{54}}^{142}}^{}+{n}_{0}^{1}$

Concept Questions :-

Nuclear binding energy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A nucleus ruptures into two nuclear parts, which have their velocity ratio equal to 2:1. what will be the ratio of their nuclear size (nuclear radius) ? 

(1)               (2)              (3)                 (4)

Concept Questions :-

Nuclear binding energy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The half-life of a radioactive material is 3h. If the initial amount is 300g, then after 18h, it will remain

(a) 4.68 g                                     (b) 46.8 g

(c) 9.375 g                                   (d) 93.75 g

Concept Questions :-

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Half-life of a radioactive substance is 20 min. Difference between points of time when it is 33% disintegrated and 67% disintegrated is approximately-

(1) 10 min            (2) 20 min            (3) 30 min            (4) 40  min

Concept Questions :-

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

When two deuterium nuclei fuse together to form a tritium nuclei, we get a [CPMT 2000]

(1) Neutron          (2) Deutron               (3) $\alpha$-particle               (4) Proton

Concept Questions :-

Nuclear binding energy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The most penetrating radiation out of the following is 

(1) $\gamma$-rays           (2) $\alpha$-particles             (3) $\beta$-rays               (4) X-rays

Concept Questions :-

Types of decay
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In any fission process the ratio  is         

(1) less than 1

(2) greater  than 1

(3) equal to 1

(4) depends on the mass of parent nucleus

Concept Questions :-

Nuclear binding energy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The nucleus ${}_{48}C{d}^{115}$, after two successive $\beta$-decay will give 

(1) ${}_{46}P{a}^{115}$                          (2) ${}_{49}I{n}^{114}$

(3) ${}_{50}S{n}^{113}$                          (4) ${}_{50}S{n}^{115}$

Concept Questions :-

Types of decay
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In nuclear fission process, energy is released because 

(1) mass of products is more than mass of nucleus.

(2) total binding energy of products formed due to nuclear fission is more than that the parent fissionable material.

(3) total binding energy of products formed due to nuclear fission is less than parent fissionable material.

(4) mass of some particles is converted into energy.

Concept Questions :-

Nuclear binding energy