In a compound microscope,the objective of foc | vedclass

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(C) In a compound microscope,the objective lens forms a real,inverted,and magnified image of the object at a distance ${v_o}$ from the objective. This

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Much greater than ${f_o}$ or ${f_e}$

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(C) In a compound microscope,the objective lens forms a real,inverted,and magnified image of the object at a distance ${v_o}$ from the objective. This image acts as an object for the eyepiece.For a compound microscope,the tube length $L$ is defined as the distance between the second focal point of the objective and the first focal point of the eyepiece.The total distance between the objective and the eyepiece is given by $L = {v_o} + {u_e}$,where ${v_o}$ is the image distance from the objective and ${u_e}$ is the object distance for the eyepiece.Since the objective lens has a very small focal length ${f_o}$ and the object is placed just beyond ${f_o}$,the image distance ${v_o}$ is much larger than ${f_o}$.Similarly,the eyepiece acts as a simple magnifier,and the image formed by the objective lies within the focal length of the eyepiece,so ${u_e} \approx {f_e}$.Therefore,the total distance $L$ between the objective and the eyepiece is much greater than both ${f_o}$ and ${f_e}$.

In a compound microscope,the objective of focal length ${f_o}$ and the eyepiece of focal length ${f_e}$ are placed at a distance $L$ such that $L$ equals:

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