107 820
Assignments Done
100%
Successfully Done
In March 2025
In March 2025
Your physics assignments can be a real challenge, and the due date can be really close — feel free to use our assistance and get the desired result.
Physics
Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form.
Math
Our experts will gladly share their knowledge and help you with programming projects. Keep up with the world’s newest programming trends.
Programming
Answer to Question #38953 in Optics for Preet
Question #38953
A small object is placed 20 cm in front of a block of glass 10 cm thick and its farther side silvered.The image is formed 22 cm behind the silvered face.Find refractive index of glass.
options are :
(1) 1.15
(2) 1.25
(3) 1.67
(4) 1.1
options are :
(1) 1.15
(2) 1.25
(3) 1.67
(4) 1.1
Expert's answer
Learn more about our help with Assignments: Optics
-
![Help me with my assignment!]()
Who Can Help Me with My Assignment
There are three certainties in this world: Death, Taxes and Homework Assignments. No matter where you study, and no matter…
-
![How to finish assignment]()
How to Finish Assignments When You Can’t
Crunch time is coming, deadlines need to be met, essays need to be submitted, and tests should be studied for.…
-
![Math Exams Study]()
How to Effectively Study for a Math Test
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
Comments
Dear Muskan, this problem can be solved in a following way. Observer will see the mirror closer due to refraction in glass slab. Let now consider this distance as 20 + x. On the other hand, image distance from the mirror should be the same and we can write as 22 + (10 - x). Now we can find that x = 6, and the real depth of the slab is 10. So we obtain the same answer n=10/6=1.67
Why we have add x to the thickness of glass slab and equate it to 22
Leave a comment