After the Eleventh Century,towns Grew in Size and Importance in Part

question 63

True/False

After the eleventh century,towns grew in size and importance in part because landlords had raised taxes on peasants.

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Definitions:

Iris Diaphragm

A mechanical adjustable aperture in optical devices that controls the amount of light passing through by adjusting its size.

Condensers

In the context of laboratory equipment, condensers are devices used to cool vapors and condense them into liquids; in electrical engineering, they are an older term for capacitors, components that store electrical energy.

Oil-Immersion Objective

A microscope objective lens designed to be used with a drop of oil to increase resolution by reducing refraction of light.

Total Magnification

The overall enlargement of an image seen with a microscope, calculated by multiplying the objective lens magnification by the ocular lens magnification.