Embibe Experts Solutions for Chapter: Atoms and Nuclei, Exercise 1: Level 1

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Embibe Experts Physics Solutions for Exercise - Embibe Experts Solutions for Chapter: Atoms and Nuclei, Exercise 1: Level 1

Attempt the practice questions on Chapter 20: Atoms and Nuclei, Exercise 1: Level 1 with hints and solutions to strengthen your understanding. Physics Crash Course NEET solutions are prepared by Experienced Embibe Experts.

Questions from Embibe Experts Solutions for Chapter: Atoms and Nuclei, Exercise 1: Level 1 with Hints & Solutions

MEDIUM
NEET
IMPORTANT

The half-life of92238U undergoing α decay is 4.5× 10 9 years. Calculate the activity of 1 g sample of92238U. (Avogadro's number is 6.022×1023)

MEDIUM
NEET
IMPORTANT

A sample of a radioactive nucleus A disintegrates to another radioactive nucleus B, which in turn disintegrates to some other stable nucleus C. Plot of a graph showing the variation of number of atoms of nucleus B versus time is : (Assume that at t=0, there are no B atoms in the sample)

EASY
NEET
IMPORTANT

The half life period of a radioactive element x is same as the mean life time of another radioactive element y. Initially they have the same number of atoms. Then:

MEDIUM
NEET
IMPORTANT

The ratio of amounts of radioactive substance X and Y at any instant is 1:4. The half-life of substance X is 18 hours and of Y is 12 hours. After three days, the ratio of the amounts of the two substances will be

MEDIUM
NEET
IMPORTANT

A nucleus with mass number 184 initially at rest emits an α-particle. If the Q value of the reaction is 5.5 MeV, calculate the kinetic energy of the α- particle.

EASY
NEET
IMPORTANT

Which of the following statement is correct?

EASY
NEET
IMPORTANT

Which of the following nuclear reactions is possible?

MEDIUM
NEET
IMPORTANT

When U92235 undergoes fission, about 0.1% of the original mass is converted into energy. The energy released when 1 kg of U92235 undergoes fission is