Tritium (hydrogen-3) has a half-life of 12.33 years and decays by ẞ emission. Which of the following nuclear diagrams correctly indicates the decay of tritium? (Key: = proton, O=neutron, electron)

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2.
3.
Tritium (hydrogen-3) has a half-life of 12.33 years and decays by ẞ emission.
Which of the following nuclear diagrams correctly indicates the decay of tritium?
=proton, O= neutron,
(Key:
A.
C.
+
electron)
B.
8
88
D.
8
- 8
+
This diagram shows a chain reaction where a single neutron causes a U-235 nucleus
split and emit 2 more neutrons, and so on.
235U
92
For each U-235 fission about 200 MeV of energy is emitted in a time of about 1 x 104 s
in an uncontrolled reaction. In a small nuclear bomb this chain reaction occurred for
about 0.005 s.
At the end of this time the total amount of energy released would have been about:
A. 1 x 10-9 J
B. 36 J
C. 1 x 103 J
D. 36 kJ
Which of the photons in the following waves would contain the greatest amount of
available energy?
A. A TV wave of frequency 62 MHz
B. Light of wavelength 589 nm
C. A mobile phone carrier wave of frequency 22 GHz
A. A radar wave of wavelength 3.3 cm
5. This diagram shows the original set-up to demonstrate the photoelectric effect.
Transcribed Image Text:2. 3. Tritium (hydrogen-3) has a half-life of 12.33 years and decays by ẞ emission. Which of the following nuclear diagrams correctly indicates the decay of tritium? =proton, O= neutron, (Key: A. C. + electron) B. 8 88 D. 8 - 8 + This diagram shows a chain reaction where a single neutron causes a U-235 nucleus split and emit 2 more neutrons, and so on. 235U 92 For each U-235 fission about 200 MeV of energy is emitted in a time of about 1 x 104 s in an uncontrolled reaction. In a small nuclear bomb this chain reaction occurred for about 0.005 s. At the end of this time the total amount of energy released would have been about: A. 1 x 10-9 J B. 36 J C. 1 x 103 J D. 36 kJ Which of the photons in the following waves would contain the greatest amount of available energy? A. A TV wave of frequency 62 MHz B. Light of wavelength 589 nm C. A mobile phone carrier wave of frequency 22 GHz A. A radar wave of wavelength 3.3 cm 5. This diagram shows the original set-up to demonstrate the photoelectric effect.
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