Question

2) It is desired to obtain an erect image of an object using a
concave mirror of focal length 20 cm.
a) What can be the range of distance of the object from the
mirror.
b) Will the image be bigger or smaller'than the object?
c) Draw the necessary diagram .

Answer 1

HEY GUYS!!!HERE IS YOUR ANSWER...

(a) distance must be less than 20cm

(b)image will be bigger than the object

Explanation:

(a) if we want to obtain an image which is erect from concave mirror we have to put the object between pole and focus. So the object must be less than 20cm away from the mirror

(b)as the image is erect and virtual it will be larger than the size of the object ;I'll discuss it in my image for question (c)

(c) is above in the image