Quiz on Introduction to Radioactivity

Which of the following is a radioactive element?

• Calcium

• Polonium

• Lithium

Which of the radioactive radiation is described as an electron?

• Beta particle

• Alpha particle

• Gamma ray

Beta particle can be stopped by

• Sheet of paper

• Aluminum foil

• Nylon

Which of the following is not correct of a radioactive element

• They have stable nucleus

• They have a large nucleus

• They have an unstable nucleus

Which of the radioactive radiation is electromagnetic?

• Gamma ray

• Alpha particle

• Beta particle

Which of the following is not deflected by magnetic field?

• Alpha particle

• Beta particle

• Gamma ray

In an electric field, beta particle is deflected towards?

• Positive end

• Negative end

• Not deflected

In a magnetic field, alpha particle is deflected towards?

• South pole

• North pole

• Not deflected

Why are gamma rays not deflected in electric and magnetic fields?

• They have high penetrating ability

• They are neutral

• They travel at a very high speed

Which of the following has the highest ionization power?

• Alpha particle

• Beta particle

• Gamma ray