The sources of X-rays are
A) electron clouds.
B) the atomic nucleus.
C) both of these
D) neither of these
Correct Answer:
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Q15: Which is heated in its interior by
Q16: The high temperature of Earth's interior is
Q17: X-rays may be correctly regarded as
A)high frequency
Q18: X-rays are emitted by way of
A)ionizing radiation.
B)transitions
Q19: X-rays are similar to
A)alpha rays.
B)beta rays.
C)gamma rays.
D)all
Q21: Cosmic rays originate in the
A)Earth's interior.
B)Earth's upper
Q22: The radiation source closest to us originates
Q23: Once an alpha particle is outside the
Q24: A nucleon is either a
A)positron or an
Q25: The natural background radiation we personally encounter
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