Q.1 Ionizing capability of gamma rays is:
A) Equal to alpha and beta particle C) Less than both alpha and beta particles
B) Less than alpha but greater than beta particles D) Less than beta but greater than alpha particles
A) Equal to alpha and beta particle C) Less than both alpha and beta particles
B) Less than alpha but greater than beta particles D) Less than beta but greater than alpha particles
Q.2 Half-life of a radioactive element is:
A) Inversely proportional to square of decay constant C) Directly proportional to decay constant
B) Directly proportional to square of decay constant D) Inversely proportional to decay constant
Q.3 The transformation of a neutron into proton in the nucleus gives rise to emission of:
A) Beta particles C) Gamma particles
B) Alpha particles D) X-rays
Q.4 The ratio of the rate of decay of a parent atom to the number of radioactive nuclei present at that time is equal to:
A) Half-life of radioactive element C) Decay constant of radioactive element
B) Mean life D) Activity if radioactive element
Q.5 Which one of the following particle is emitted as a result of nuclear reaction?A) Inversely proportional to square of decay constant C) Directly proportional to decay constant
B) Directly proportional to square of decay constant D) Inversely proportional to decay constant
Q.3 The transformation of a neutron into proton in the nucleus gives rise to emission of:
A) Beta particles C) Gamma particles
B) Alpha particles D) X-rays
Q.4 The ratio of the rate of decay of a parent atom to the number of radioactive nuclei present at that time is equal to:
A) Half-life of radioactive element C) Decay constant of radioactive element
B) Mean life D) Activity if radioactive element
Ra226 Rn222
A) Beta C) Gamma rays
B) Alpha D) One alpha and one beta