Davisson and Germer Experiment Quiz

1. Q. Let us consider a specific case of electron. If the electron acquires kinetic energy on being accelerated from rest through a potential difference of V volt, then KE = eV, if e is the electron charge, what would be the de- Broglie wavelength,

a.  lambda = h/sqrt{2meV}

b. lambda = h/sqrt{meV}

c. lambda = h/sqrt{2mKEV}

d. lambda = h/sqrt{meV}

2. Q. The Angle in between the incident beam and the scattered beam (enter into collector) is known as;

3. Q. Diffraction is;

4. Q. The formula associated with the electrons accelerated by a potential difference V is;

Select the correct option-

A.  lambda = 12.27/V

B.  lambda = 12.47/√V

C.  lambda = 12.07/V

D.  lambda = 12.27/√V

5. Q. By the Davisson and Germer Experiment electrons shows diffraction characteristics. Is it possible to use & test the neutrons and protons particles also, in this experiment to demonstrate the diffraction? In other words dual nature of neutrons and protons particles.

Option you have;

A. Yes

B. No

C. Maybe

D. 50% chance

6. 10 Q. From the experiment observations, Davisson and Germer observed a most prominent bump. They explained it with the help of?

7. Q. The year in which Davisson and Germer Experiment was performed to detect the electron diffraction is;

8. Q. In the Davisson Germer experiment, electrons emits from the filament i.e., tungsten. Is it true?

A. Yes

B. No

C. Maybe

D. 50%

9. Q. Diffraction satisfies the condition;

10. Q: de-Broglie Hypothesis of Matter Waves says, all material particles in motion have wave nature also. The wave associated with moving particles of matter are called “de-Broglie waves” or “matter waves”.

If the Energy of a photon is ; E= hν

The de-Broglie wavelength of the photon would be,