Question

An object is placed in
is placed in front
front of a Concave mirror
of focal length 20 on the image formed 20 cm
the image formed is 3 times the size of object
cod malte two possible dostance of object from
mirror​.? . pen and paper please!​

Answer 1

Answer:

Focal length of the concave mirror = 20 cm.

Image formed is 3 times the size of the object.

That means image is magnified.

There is only one instance where image is magnified in concave mirror.

And that is when the object is kept between P and F. Image is formed behind the mirror. Hence image distance will be +ve.

Image details :-

• Virtual
• Erect
• Enlarged or magnified.

Draw the last Concave mirror diagram given in your textbook.