Is stopping potential directly proportional to wavelength?

The stopping potential necessary to reduce the photoelectric current zero- is directly proportional to wavelength of incident light. uniformly increase with the wavelength of incident light. uniformly increases with the frequency of incident light.Full cutoff wall pack

Why are LED not energy-efficient?

Energy Efficiency

Similarly, LEDs do not provide the same quality of light as incandescent because LED light is a narrowly focused, non-uniform beam. Thus, LEDs are not energy efficient as claimed by the industry because they do not provide the same quality of service as incandescent and HPS.

What are the 4 functions of lighting design?

There are four functions of light: Mood: Setting an emotional tone for a scene through use of color, angle, and intensity of light. Illumination: Providing light by which the audience can see the performance. Modeling: The use of highlight and shadow to reveal the form of the actors and the stage environment.

What is the purpose of the cut command?

Description. The cut command cuts bytes, characters, or fields from each line of a file and writes these bytes, characters, or fields to standard output. If you do not specify the File parameter, the cut command reads standard input.

What can I use instead of silica gel packets?

Activated Charcoal: This is a popular alternative to silica gel sachets. It works by adsorbing moisture and odours from the surroundings. It can get messy though so make sure your product doesn't touch the charcoal. Rice: Uncooked rice can also be used as a substitute.

What are the five functions of walls?

Good quality walls provide strength and stability, weather resistance, fire resistance, thermal insulation and sound insulation. There are various ways to construct a wall and many different materials can be used, but they can be divided into four main groups.

What are the common types of lighting sources?

This article explores four main types of light source: incandescent, tungsten, fluorescent, discharge, and LED. If you're wondering what a 'light source' is, just think of the bulb in your lamp at home.Commercial LED Flood lights

What does a cutoff filter do?

A cutoff filter is a processor that can attenuate or completely remove certain partials from any given frequency spectrum when the signal is passed through it. The user sets the upper and lower frequency limit.2x2 led lights for drop ceiling

What is the difference between absolute and relative photometry?

With absolute files, only one lumen output is stated and, since LOR = 100%, this is the output of the luminaire. In a relative file, lamp lumens are shown with the efficiency factor automatically applied for calculations.

What are 3 everyday uses for silicon?

Uses of Silicon
The element is a major constituent in ceramics and bricks.
Being a semiconductor, the element is put into use for making transistors.
Silicon is widely used in computer chips and solar cells.
It is a vital component of Portland cement.
Silicon is used in the production of fire bricks.
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