Virtual Labs

Measurement of Planck’s constant through Black Body Radiation

What is the significance of Planck's constant (h) in the context of black body radiation?

a: It determines the temperature of the black body. Explanation

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b: It governs the relationship between the energy and frequency of the emitted radiation. Explanation

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c: It represents the total energy emitted by the black body. Explanation

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d: It defines the color perception of the black body. Explanation

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Which of the following best describes the concept of black body radiation?

a: The radiation emitted by a black-colored object. Explanation

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b: The emission of colored light by hot objects. Explanation

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c: The continuous spectrum of radiation emitted by an idealized object that perfectly absorbs and emits radiation at all wavelengths. Explanation

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d: The reflection of light by a black surface. Explanation

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What role does Planck's constant play in quantizing energy levels in black body radiation?

a: Planck's constant determines the color of the emitted radiation. Explanation

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b: Planck's constant is used to calculate the total energy emitted by the black body. Explanation

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c: Planck's constant quantizes the energy levels of the emitted radiation into discrete packets called "quanta" or photons. Explanation

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d: Planck's constant regulates the temperature of the black body. Explanation

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Why is it essential to repeat the experiment with multiple trials when finding Planck's constant?

a: To reduce the effect of systematic errors. Explanation

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b: To increase the intensity of the incident light. Explanation

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c: To minimize the dark current of the detector. Explanation

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d: To decrease the uncertainty in the temperature measurement. Explanation

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How can the accuracy of the wavelength measurement be improved in the black body radiation experiment?

a: Using a light source with a broader spectrum. Explanation

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b: Decreasing the resolution of the wavelength measurement instrument. Explanation

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c: Increasing the size of the black body. Explanation

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d: Using a diffraction grating for wavelength measurements. Explanation

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