If the Wavelength of Light Is 400 Nm in a Substance

question 66

Multiple Choice

If the wavelength of light is 400 nm in a substance where the speed of light is 2.35 $\times$ 10⁸ m/s,what is the wavelength of this light in air?

• A) 313 nm
• B) 400 nm
• C) 511 nm
• D) 635 nm
• E) 940 nm

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Definitions:

Toxic Metals

Toxic metals are elements like lead, mercury, arsenic, and cadmium that are poisonous even at low concentrations, posing serious health risks when they accumulate in the body.

Organic Pesticides

Pesticides derived from natural sources, used in agriculture to control pests without synthetic chemicals, aiming for environmental friendliness and sustainability.

Livestock Growers

Individuals or businesses involved in raising animals for food, fiber, or labor; includes practices for cattle, sheep, pigs, and poultry farming.

Animal Wastes

By-products of animal life processes that are discarded, including manure and urine, which can impact the environment if not managed properly.