Calculate the commutator-semiempirical formula, Physics

1. A given radioactive sample emits only one type of radiation. When placed in a counter for 10 minutes, 1632 counts are registered.

Then the sample is removed and a background of 2641 counts is registered in 90 minutes.

a) What is the net count per minute?

b) If the efficiency of the counter is 26% what is the activity of the source in Bq?

b) What is the standard deviation of the activity (in Bq)?

2. Calculate the commutator [l2, lz]. Use the properties [AB,C]=A[B,C] + [A,C]B and

[A,BC]=B[A,C] + [A,B]C along with the definition of l2 and lz.

3. Compare the proton separation energy for a nucleus with magic Z with that of its neighbours with Z+1 and Z-1. Discuss your findings.

4. Determine ΔB (A,Z)=Bexp (A,Z) - Btheor (A,Z), where Btheor (A,Z) is calculated using the semiempirical formula and Bexp (A,Z) using atomic masses. Do this for three nuclei with both proton and neutron magic numbers. Choose three nuclei: a light, a medium heavy and a heavy nucleus.

Discuss your findings.

Posted Date: 3/1/2013 6:08:28 AM | Location : United States







Related Discussions:- Calculate the commutator-semiempirical formula, Assignment Help, Ask Question on Calculate the commutator-semiempirical formula, Get Answer, Expert's Help, Calculate the commutator-semiempirical formula Discussions

Write discussion on Calculate the commutator-semiempirical formula
Your posts are moderated
Related Questions
Q. Illustrate why does the pilot tilt the outer wing of the airplane inward while taking a turn? Answer:- Airplanes have two control surfaces implicated when turning the a

In a Newton's ring experiment the diameter of n th ring is 0.46 cm it got shrink to a diameter of 0.40 cm when a liquid is given between the plane glass plate and Plano convex len


What is the exact distinction between Diffraction and Interference?

I WANT SHORT THEORY OF DEFLECTION MANGNETOMETER TAN A& TAN B

can whole charge of a body be transfered to other?

a projectile is fired from a gun has an initial velocity of 90.0 Km/h at an angle of 60.0 degrees to the horizontal. When the projectile is at top of its trajectory an internal exp

what is moment of Inertia? Give an example, I need some specific and unique examples of moment of interia topic.

Define the Intensity of the laser in short. Intensity: a. Lasers are intense and bright light sources. It is due to coherence and directionality. b. The  intensity  is  e

Electromagnetic waves: Electromagnetic waves with different ranges of frequency constitute an electromagnetic spectrum. Electromagnetic waves are transverse in nature. Visible