light bulb

Multiple Choice

What is the name of the lamp?

• Bulb

• Fluorescent

• Electric saver

Multiple Choice

The filament of electric bulb is made of.....

• Iron

• Lead

• Tungestin

Multiple Choice

The.......... is used to connect lamp to electricity

• Base

• Two point of connection

• Filament

Multiple Choice

Which lamp save electricity?

Multiple Choice

The Glass is filled with.......... gas

• Argon

• Neon

• Nitrogen

• Oxygen

Multiple Choice

Incandescent lamps last longer than fluorescent lamps.

• True

• False

Multiple Choice

__________ comprises of a cylindrical glass tube sealed at both ends and containing a mixture of an inert gas, generally argon and low-pressure mercury vapor.

• Mercury vapor

• Metal Halide

• Incandescent

• Fluorescent lamp

Multiple Choice

Which of the following types of lamps provides the best color rendition of skin tones?

• Cool-white fluorescent

• Mercury vapor

• Metal Halide

• Incandescent

Multiple Choice

The production of light with a specific pattern of oscillation.

• reflection

• polarization

• refraction

• diffraction

Multiple Choice

A Polarizing filter is used to reduce glare on reflective surfaces including glass, windows, and water.

• True

• False

Multiple Choice

Approximately how much light is blocked by two polarizing filters that are perpendicular to each other?

• 0%

• 50%

• 75%

• 100%

Multiple Choice

Approximately how much light is blocked by a single polarizing filter?

• 0%

• 50%

• 75%

• 100%

Multiple Choice

If a polarizer is placed in a beam of nonpolarized light, only the components of the waves in the .......................direction as the polarizing axis can pass through .

• same

• different

• perpendicular

Multiple Choice

If the polarizing axis of the second filter is parallel to

that of the first, the light will .............

• pass through it

• block

• reflect