Exams

Opportunity cost is the cost of other alternative choices for making your interested choice of work. Oppurtunity cost is also called as alternative cost.

For example on a holiday, you have two choices to do, either you can go to movie or a function. And if you chose to go to moavie, the oppurtunity cost of going to movie is the value that would have gotten if you had gone to function.

The law of increasing opportunity costs states that as you increase production of one good, the opportunity cost to produce an additional good will increase.

Isotopes are variations of an element that have the same charge as the original element, but a different mass, which is caused by either more/less neutrons in the nucleus.

When exposed to certain frequencies of radiation, such as radio waves, the subatomic particles called electrons that orbit an atom's nucleus will "jump" back and forth between energy states. Clocks based on this jumping within atoms can therefore provide an extremely precise way to count seconds.It is no surprise then that the international standard for the length of one second is based on atoms. Since 1967, the official definition of a second is 9,192,631,770 cycles of the radiation that gets an atom of the element called caesium to vibrate between two energy states.