A) \[R\]
B) \[\frac{3r}{4}\]
C) \[\frac{256\,R}{81}\]
D) \[\frac{81\,R}{256}\]
Correct Answer: B
Solution :
Key Idea: in normal adjustment image formed by objective is at focus of eyepiece. To see with relaxed eye the final image should be formed at infinity. For this, the distance between the objective and eyepiece is adjusted, so that the image formed by objective is at the focus of eyepiece. This adjustment is called normal adjustment.You need to login to perform this action.
You will be redirected in
3 sec