basic physics mcqs

Q.37 Thorium is transformed after the transmission of β­particle into:
A) Bismuth                                                        C) Polonium
B) Protactinium                                                  D) Palladium
Q.38 Emission of γ­rays from radioactive element results into:
A) Bismuth                                                        C) Polonium
B) Protactinium                                                  D) Palladium

Q.40 Radioisotope which is used to combat cancer of thyroid gland is:
A) Iodine-131                                        C) Strontium-90
B) Phosphorous-32                                D) Cobalt-60

Q.41 Sodium­24 is used for:
A) Sterilization                                                   C) Skin Cancer
B) Study of circulation of blood                         D) Thyroid Cancer
Q.42 Energy radiation absorbed at the rate of one joule per kilogram is called:
A) 1 Rad                                               C) 1 Yellow
B) 1 Sievert                                           D) 1 Gray