Two Light Beams of Different Frequency but the Same Intensity

question 56

Multiple Choice

Two light beams of different frequency but the same intensity fall on a black (totally absorbing) surface, striking perpendicular to the surface. Which of the following statements are true? (There
Could be more than one correct choice.)

• A) Painting the surface white would not affect the pressure on it due to these beams.
• B) The high-frequency beam exerts more pressure on the surface.
• C) Both beams exert the same pressure on the surface.
• D) The light beams exert no pressure on the surface because light is just energy.
• E) If the surface were painted white (totally reflecting), the pressure on it would be less than when it was black.

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Definitions:

Biome

A large community of plants and animals that occupies a distinct region defined by its climate and vegetation.

Flat-Topped Acacia

A type of acacia tree characterized by its distinctive flattened crown, commonly found in African savannas.

Biome

A large community of plants and animals that occupies a distinct region defined by its climate and ecosystems.

Savanna Grassland

A ecosystem characterized by a mix of grasses and scattered trees, found in tropical and subtropical regions with seasonal rainfall.