Light of a Given Wavelength Is Used to Illuminate the Surface

question 77

Multiple Choice

Light of a given wavelength is used to illuminate the surface of a metal,however,no photoelectrons are emitted.In order to cause electrons to be ejected from the surface of this metal you should

• A)use light of a longer wavelength.
• B)use light of a shorter wavelength.
• C)use light of the same wavelength but increase its intensity.
• D)use light of the same wavelength but decrease its intensity.

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Definitions:

Contusion

A bruise resulting from blunt trauma, leading to bleeding under the skin without breaking the skin.

Bones

The stiff structures that make up a portion of the internal skeleton in vertebrates, offering support, safeguarding, and assisting in mobility.

Sagittal Suture

A fibrous joint that divides the human skull along the midline, connecting the two parietal bones.

Parietal Bones

A pair of bones forming the sides and roof of the skull's upper part, contributing to the cranial structure.