Q.37 Thorium is transformed after the transmission of β ­particle into: A) Bismuth                                     …

Q.24 A Uranium isotope 232 92 U undergoes one α –decay and one β 10 – decay. What is the final product? A) 90          …

Q.31 A certain radioactive nuclide of mass number ‘x’ decays by β­emission and α ­emission to a second nuclide of mass …

Q.17 Emission of alpha decay from a radioactive substance causes: A) Decreases in 'Z' by 4 and decreases in …

Q.11 Which of the following is unit of absorbed dose? A) Sievert                                   C) Roentgen B) Gray …

Q.1 Ionizing capability of gamma rays is: A) Equal to alpha and beta particle                                 C) Less t…

Q.6 Which of following is used to estimate the circulation of blood in a patient? A) Carbon-14                         …

Q.27 What will be the energy of accelerated electron used to produce X-rays when the accelerating potential is 2 kV? A)…

Q.38 Which one of the following gas is the lasing or active medium in the laser tube? A) Hydrogen                      …

Q.20 For what CAT stands in X­ray technology? A) Capacitor Amplifier Transistor                         C) Cathode Anod…

Q.13 Which of the following property must be there in a substance so that it can be used as target in X­ray tube? A) It…

.8 The kinetic energy K.E. with which the electron strikes the target is given by: A) K.E. = e 2 V                     …

Q.1 In Helium Neon laser, population inversion of _________ atoms is achieved which emit radiations, when they are stim…