Question

Using the data given below, state which two the given lenses will you prefer to construct a best possible
a) Telescope
b) Microscope
L1- 6D - aperture 1 cm.
L2- 3D - aperture 8 cm
L3 - 10D - aperture 1cm.

Answer 1

L2- for telescope, the bigger the apature the clearely the image is formed

L3 for Microscope as it has greater power and microscope uses small apeture

Answer 2

Answer:

L3 - 10D - aperture 1cm.

Explanation:

a) Telescope

• The telescope's objective is chosen to be Lens L3, as it has the largest aperture. Since it has the shortest focal length, the lens L3 is selected as the eyepiece.

• Since the convex lens bends light to magnify objects by enlarging them, the telescope must have one convex lens as one of its two lenses. In some telescope designs, the concave lens is utilized to increase the focal length.

b) Microscope

• The best objective for a microscope is Lens L3, as it has the shortest focal length.
• Lens L1 acts as the eyepiece because it has the smallest focal length. This is required to increase the magnifying power of the microscope.

• An optical tool that can reflect light is a lens. A lens's convex or concave shape will determine how the reflection appears. Convex lenses are used for microscopy because they concentrate light at a single point.

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