Namitha is jounalist. She used her pen camera to capture the photographs of a crime that took place on the way to her office. Which of the following is the source of the electrical energy which must be used in the said camera ?

Namitha is jounalist. She used her pen camera to capture the photograp

1.	Namitha is jounalist. She used her pen camera to capture the photographs of a crime that took place on the way to her office. Which of the following is the source of the electrical energy which must be used in the said camera ?
Answer» Nickel-cadmium CELLS Lead-acid batteries Alkaline cells BUTTON cells Solution :Button cells are used in a pen CAMERA. Hence the correct option is (d)