The reflecting surface of a concave mirror is curved. (2) Distances measured in the direction of the incident light are taken as positive.

Question

(1) The reflecting surface of a concave mirror is curved. 

(2) Distances measured in the direction of the incident light are taken as positive. 

(3) If the image is erect, the height of the image is negative. 

(4) A real image can be displayed on a screen.

(5) A concave mirror always forms a real and inverted image. 

(6) Doctors use diverging beam of light to study teeth, ears and eyes.

Answer 1

(1) True 

(2) True 

(3) False. if the image is erect, the height of the image is positive. 

(4) True 

(5) False. a concave mirror can also form a virtual and erect image. 

(6) False. doctors use a converging beam of light to study teeth, ears and eyes.