Types of radiation and nuclear equations

Types of radiation and nuclear equations Quiz

Spec 168–171 · Edexcel A-Level Physics: Quiz

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5 questions, one answer each

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  1. 1. A GM tube records 180 counts in 3.0 minutes with no source. With a source it records 900 counts in 1.0 minute. What is the corrected count rate?

    • A. 840 counts per minute
    • B. 720 counts per minute
    • C. 900 counts per minute
    • D. 1080 counts per minute

  2. 2. Which type of radiation is stopped by a sheet of paper?

    • A. Gamma
    • B. Beta-minus
    • C. Alpha
    • D. All of them

  3. 3. Uranium-238 (Z = 92) undergoes alpha decay. What is the daughter nucleus?

    • A. Thorium-234 (Z = 90)
    • B. Thorium-234 (Z = 94)
    • C. Protactinium-238 (Z = 93)
    • D. Radium-234 (Z = 88)

  4. 4. What is the proton number of the daughter nucleus after beta-minus decay of carbon-14 (Z = 6)?

    • A. 5
    • B. 6
    • C. 7
    • D. 8

  5. 5. What does a straight line of ln (corrected count rate) against lead thickness show about gamma absorption?

    • A. It is linear
    • B. It is exponential
    • C. It is random
    • D. It stops at a fixed thickness

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