When Cs-137 Decays,it Emits Gamma Radiation

question 43

Multiple Choice

When Cs-137 decays,it emits gamma radiation.The energy of one photon is 1.06 × 10−¹³ J.What is the wavelength of this radiation?

• A) 1.87 × 10−¹² m
• B) 2.08 × 10−¹² m
• C) 2.44 × 10−¹² m
• D) 1.88 × 10−¹¹ m
• E) 1.58 × 10−¹⁰ m

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