Question

An object is placed 30 cm in front of a block of glass 10 cm thick

Answer 1

Solution ➡️ RI n=area; depth /apparent depth

n=30/x

silvered surface act as a mirror

thus,to get the image 23.2 cm behind,the object should be 23.2 cm i n front

x+thickness of glass=23.2

x+10=23.2

x=23.2-10=13.2

n=30/13.2

=2.272

hope this helps ☺️☺️

Answer 2

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