When a Human Eye That Has a Power of +60

question 92

Multiple Choice

When a human eye that has a power of +60 D is fitted with a contact lens of -10 D,the equivalent lens combination is

• A)diverging and of focal length 2 cm.
• B)converging and of focal length 50 cm.
• C)converging and of focal length 2 cm.
• D)focal length 0.02 cm.
• E)focal length 0.2 cm.

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Definitions:

Single Winding

A coil of wire wound around a core, used in transformers or other electromagnetic devices, usually refers to having only one loop or layer.

Phase Voltage

The amount of voltage measured across a single phase of a three-phase load or power supply.

Line Voltage

The voltage as measured between the lines of a three-phase system.

Delta-Connected

A method of connecting three components of an electrical circuit where each component is connected end-to-end to form a closed loop or triangle.