With reference to the radioactivity, which of the following statements is/are correct? 1. Radioactivity is a nuclear property. 2. Hydrogen bomb is prepared on the principle of nuclear fission. Select the correct answer using the codes given below.

Which of the following forces is/are fundamental in nature ? 1. Gravitational force 2. Electromagnetic forces 3. Strong and weak nuclear forces Select the correct answer using the code given below :

Which of the following statements about 'fission' is correct ? 1. It is related with the creation of new individuals by means of cell division in unicellular organism. 2. It is related with the trans…

Consider the following statements: 1. The chain reaction process is used in nuclear bombs to release a vast amount of energy, but in nuclear reactors, there is no chain reaction. 2. In a nuclear reac…

Which of the following pairs of physical phenomenon and the discoverer is/are correctly matched ? 1. James Chadwick : Photoelectric effect 2. Albert Einstein : Neutron 3. Marie Curie : Radium Select…

Consider the following events and arrange them in correct chronological order starting from the earliest to the last activity : (I) Discovery of pi meson (II) Discovery of Neutron (III) Discovery of…