The least massive particle known to exist is the electron neutrino. Though scientists once believed that it had no mass, like the photon, they have now determined that this particle has an extremely low mass, equivalent to a few electron volts. Assuming a mass of 2.2 eV/c2 (or 3.9 × 10-36 kg) and a speed of 4.4 × 106 m/s, which of the following values equals the neutrino’s de Broglie wavelength? a. 3.8 × 10-5 m b. 4.7 × 10-7m c. 1.7 × 10-10m d. 8.9 × 10-14m
The least massive particle known to exist is the electron neutrino. Though scientists once believed that it had no mass, like the photon, they have now determined that this particle has an extremely low mass, equivalent to a few electron volts. Assuming a mass of 2.2 eV/c2 (or 3.9 × 10-36 kg) and a speed of 4.4 × 106 m/s, which of the following values equals the neutrino’s de Broglie wavelength? a. 3.8 × 10-5 m b. 4.7 × 10-7m c. 1.7 × 10-10m d. 8.9 × 10-14m
College Physics
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Chapter31: Radioactivity And Nuclear Physics
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Problem 16PE: (a) What is the kinetic energy in MeV of a ray that is traveling at 0.998c? This gives some idea of...
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The least massive particle known to exist is the electron neutrino. Though scientists once believed that it had no mass, like the photon, they have now determined that this particle has an extremely low mass, equivalent to a few electron volts.
Assuming a mass of 2.2 eV/c2
(or 3.9 × 10-36 kg) and a speed of 4.4 × 106 m/s, which of the following values equals the neutrino’s de Broglie wavelength?
a. 3.8 × 10-5 m
b. 4.7 × 10-7m
c. 1.7 × 10-10m
d. 8.9 × 10-14m
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