To determine focal length of a concave mirror a student obtains the image of a well lit distant object on a screen. To determine the focal length of the given concave mirror we need to measure the distance between:
A. mirror and the object
B. mirror and the screen
C. screen and the object
D. screen and the object and also mirror and the screen
Answer:B
To determine focal length of a concave mirror a student obtains the image of a well lit distant object on a screen. To determine the focal length of the given concave mirror we need to measure the distance between:
A. mirror and the object B. mirror and the screen C. screen and the object D. screen and the object and also mirror and the screen
Explanation: l= distance between lens and the image.