Which of the following lenses L_1,L_2, and L_3 will you select to construct a best possible (i) telescope , (ii) microscope ? Which of the selected lenses is to be used as objective and eyepiece in each case ? {:("Lenses","Power","Aperture"),(L_1,6D,1 cm ),(L_2,3D,8 cm ),(L_3,10D ,1cm ):}

Which of the following lenses L_1,L_2, and L_3 will you select to cons

1.	Which of the following lenses L_1,L_2, and L_3 will you select to construct a best possible (i) telescope , (ii) microscope ? Which of the selected lenses is to be used as objective and eyepiece in each case ? {:("Lenses","Power","Aperture"),(L_1,6D,1 cm ),(L_2,3D,8 cm ),(L_3,10D ,1cm ):}
Answer» Solution :A MICROSCOPE should have an objective of very small FOCAL length and small apertureand an EYEPIECE of COMPARATIVELY larger focal length and larger aperture. So lens `L_3` is to be usedas objective and `L_1` as eyepiece.

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Which of the following lenses L_1,L_2, and L_3 will you select to construct a best possible (i) telescope , (ii) microscope ? Which of the selected lenses is to be used as objective and eyepiece in each case ? {:("Lenses","Power","Aperture"),(L_1,6D,1 cm ),(L_2,3D,8 cm ),(L_3,10D ,1cm ):}

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