Question

at what place an object 4 cm high must be placed in front of concave mirror of focal length 12 cm to obtain 1cm high image of object​

Answer 1

Answer:

36 cm in front of concave mirror

Explanation:

Magnification for concave mirror is = Hi/Ho = f/(f-u)

therefore Hi=-1cm("-"because will be real , if the image the would be virtual the height of image would be  more than that of object) and Ho=4cm

and focal length(f)=-12cm

Put the value get the answer

Answer 2

Answer:

what's up shinchan nohara

Explanation:

When a liquid is poured from one container to another it's shape may change but it's volume does not change.