" What has the camera captured? "

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 ?

Lens Camera

What are the methods of capturing fish?

A camera is accidentally knocked off an edge of a cliff 400 ft high. The camera falls a distance of s=16t^(2) in t seconds. What is the average velocity with which the camera falls during the last 2 seconds?

A camera is accidentally knocked off an edge of a cliff 400 ft high. The camera falls a distance of s = 16t^(2) in t seconds. What is the average velocity with which the camera falls during the last 2 seconds?