Atomic and Nuclear Physics Answers

Expain with example the transition probabilities of diatomic molecules?

why alpha decay occurs

Write down at least three precautions that must be adopted in order to perform the

experiment to study the characteristics of G.M tube

Write down the working principle of GM tube.

Write down the apparatus used to investigate attenuation of radiations with absorption of beta particles. 

. Explain the phenomenon of avalanche produced in working of GM tube

1.Find I when V = 120V and R = 3O Ω.

2. Suppose a resistor has a value of 110 Ω, and the measured current is 10 mA, what is the

voltage?

3. What is the resistance of a 50-m tungsten (ρ=5.5x10⁻⁸ Ω-m) wire having a diameter of

0.8 mm.

4. An electric light bulb draws 1 A when operating at 120 V circuit. What is the resistance

of the bulb?

5. If the voltage across a 25 000-Ω resistor is 500 V, what is the power (hp) dissipated in

the resistor?

6. Find the shortest time that 120 C can flow through a 20 A circuit breaker without

tripping it?

7. How much chemical energy must a 1.25 V flashlight battery expend in producing a

current flow of 130 mA for 5 minutes?

8. Find the charge in coulombs of (a) 6.28 x 10²¹ electrons and (b) 8.76 x 10²⁰ protons.

9. How much power does an electric clock require if it draws 27.3 mA from a 110-V line?

10. Find the average input power to a radio that consumes 4500 J in 3 min.

An electron in a Mercury atom is at the 'g' energy level and returns to the 'd' energy level. List how many possible photons may be emitted by the electron as it returns to the 'd' energy level. 

A newly discovered particle is found to have a quark composition of anti-bottom, up. What is the charge of this particle, in Coulombs?