Question

what is the nature of image is formed by concave mirror if the magnification produced by the mirror is -0.75??? plzzz help me

Answer 1

Diminished and real and inverted

Answer 2

Note that : Magnification is the ratio of size of image to the size of object...

denoted by letter m

m = h1 / h2 = - v / u
where h1 = size of image
h2= size of object
v = Image distance
u = Object distance

Magnification actually tells about how small or large is the image than object formed by the mirror...

Sign of Magnification gives the nature of image i.e, which tells whether an image is Real or Virtual

If m is negative , it means image is Real
If m is Positibe , it means image is Virtual

According to problem

magnification ,
m = -0.75
h1 / h2 = - 0.75
h1 = h2 x ( -0.75 ) or h1 = ( -0.75) x h2
This means size of image is 0.75 times the size of Object and Negatibe sign indicates that nature of image is Real....