Light Falling on the Surface of a Metal Such as Cesium

question 70

Multiple Choice

Light falling on the surface of a metal such as cesium can liberate electrons from the metal.The kinetic energy of electrons emitted from a metal can be increased by

• A)using light of higher frequency.
• B)using light of lower frequency.
• C)increasing the intensity of the incident light.
• D)using a metal with a greater work function.
• E)None of these is correct.

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Definitions:

Conversion Symptoms

Physical symptoms that occur without a physiological basis, often resulting from psychological conflict or stress.

Conversion Disorder

A mental condition in which a person has blindness, paralysis, or other nervous system symptoms that cannot be explained by medical evaluation.

Spontaneous Self-hypnosis

The natural occurrence of hypnotic-like states without formal induction, often triggered by extreme focus or stress.

Malingering

The act of intentionally feigning illness or incapacity in order to avoid work or responsibility or to gain some form of benefit.