Glass Is Opaque to Light with Wave Frequencies That

question 161

Multiple Choice

Glass is opaque to light with wave frequencies that

• A)match its natural frequencies.
• B)are below its natural frequencies.
• C)both of these
• D)none of the above

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Definitions:

Voltmeter

An instrument used for measuring electrical potential difference between two points in an electric circuit.

Analog Meter

A measuring instrument with a moving pointer that displays readings on a graduated scale, used for measuring physical quantities like voltage or current.

Galvanometers

Instruments used to detect and measure small electric currents by deflection of a pointer in the presence of magnetic fields.

Wattmeter

A meter used to measure true power or watts.