An object is lying at a distance of 90 cm from a concave mirror of focal length 30 cm. The position and nature of image formed by it will be________
A. 45 cm, of the size of object
B. 90 cm, smaller than object
C. 30 cm, bigger than object
D. – 45 cm smaller than object
Answer:D
An object is lying at a distance of 90 cm from a concave mirror of focal length 30 cm. The position and nature of image formed by it will be________
A. 45 cm, of the size of object B. 90 cm, smaller than object C. 30 cm, bigger than object D. – 45 cm smaller than object