The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be _____________ percent?

Related Mcqs:

Which of the following ores contains maximum percentage of uranium ?

A. Carnotite B. Thorium C. Rescolite D. Pitchblende...

The ratio of volume of an atom to that of its nucleus is__________________?

A. 1012 B. 10-12 C. 10-8 D. 108...

Which of the following is not used as a nuclear fuel cladding material ?

A. Zircaloy B. Cadmium C. Ceramics D. Stainless steel...

The main ore of thorium is_________________?

A. Pitchblende B. Monazite sand C. Limonite D. Galena...

When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as____________________?

A. Isomers B. Isotopes C. Isobars D. Isotones...