Define Photometry.

Q: Explain briefly how the photoelectric effect is used in the operation of at least two of the…

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Q: Differentiate between emission spectra and absorption spectra. Write five-five points of each…

A: Emission SpectraAbsorption SpectraProduced when atoms release energyProduced when atoms absorb…

Q: Define Radiowaves.

A: Radio waves are electromagnetic waves which are produced by rapid acceleration and deceleration of…

Q: What is electromagnetic spectrum and why is it useful?

A: The electromagnetic spectrum is the classification of the electromagnetic waves based on the…

Q: What aspect of light is being most clearly demonstrated in the diagram below?

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Q: The illuminance provided by a point source of light is directly proportional to its luminous flux. )…

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Q: Draw the electromagnetic spectrum and label its parts showing its wavelength.

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Q: Define the electromagnetic spectrum ?

A: Electromagnetic spectrum is the range of frequencies which describes all types of lights. The…

Q: In your own words, what natural light and artificial light

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Q: Define photocell.

A: A device in which the photoelectric or photovoltaic effect or photoconductivity is used to produce a…

Q: What is the lowest energy form of radiation in the electromagnetic spectrum?

A: The energy of an electromagnetic wave is directly proportional to the frequency of the wave.   Gamma…

Q: How do you create a three dimensional light source ? (Sun, Star, Fire, Flashlight, candle, Light…

A: Solution:-

Q: Define the term continuous spectrum?

A: When white light from any source is analyzed  by passing it through a prism. It observed that it…

Q: Use the definition of a meter to determine how far light travels in 1ns. Answer should be in meters,…

A: The meter is equal to the distance traveled by light in vacuum in 1/299792458 of second,

Q: What gives rise to spectral lines? What is happening within an atom that causes it to emite light in…

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Q: Who was the first person to obtain the spectrum of sunlight?

A: In 1666, Sir Issac Newton performed prism experiment to obtain the spectrum of sunlight. In his…

Q: Q1/ Find the total energy and the greatest wavelength of the energy emitted from the surface of the…

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Q: GIVE ONE ILLUSTRATION OF RAY DIAGRAM AND BRIEFLY EXPLAIN IT

A: GIVE ONE ILLUSTRATION OF RAY DIAGRAM AND BRIEFLY EXPLAIN IT.

Q: A particular star has a surface temperature of 30,000K. Determine Amax, the wavelength at the peak…

A: Given: The surface temperature of the particular star is, T = 30,000 K To Find : The maximum…

Q: 1. Compute for the illuminance in your room. 2. Search for the ideal illuminance in the areas of…

A: The formula of illuminance E is given by  E = P/(4πd2) where P is the luminous flux d is the…

Q: Define an idealized blackbody

A: As per bartelby guidelines, only one question can be solved, kindly post the others separately.

Q: A blackbody radiator (none of the choices) does not absorb thermal radiation. emits radiation only…

A: First option is correct.

Q: Give a list of atleast five radiations in order of their increasing wavelengths.

A: If a radiation have highest wavelength, then its frequency is lowest.

Q: explain the spectrum of light?

A: Light can occur at any frequency or wavelength. Light can occur in any combination of frequencies…

Q: Relate how astronomers use telescopes and electronics to analyze the electromagnetic spectrum to…

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Q: Each of the images below represents a change in this light beam. All images are to the same scale.…

A: the first image represents particle nature second a longer wavelength (smaller frequency) and small…

Q: What is the distance light travels in one year?

A: Given:  time = 1 year  speed, c = 3 x 108 m/s

Q: What are the subtractive primary colors?

A: Subtractive colors contains colorants and reflected light.

Q: briefly Describe how photons of light can be produced in a hot gas

A: ..

Q: 1. Calculate the energy of a photon of a green light (A=0.52μm). (Convert the wavelength to…

A: Given: The wavelength of the photon is 0.52 μm.

Q: Using the wavelength equation, determine the wavelength (λ) for a wave with a velocity (v) of…

A: Given wave velocity  = v = 3.00x108 m/s frequency = f = 5.45x1014 Hz We have calculate wavelength…

Q: Calculate the wavelength of the frequencies below: e) 300THz (infrared light) f) 600THz…

A: Calculate the wavelength of the frequencies below: e) 300THz (infrared light) f) 600THz…

Q: Define Ultraviolet rays.

A: Ultraviolet is type of electromagnetic radiation which has wavelength shorter than visible light,…

Q: The speed of light in vacuum is 3 X 105 km/s and 1 km = 1,000 m and 1m = 100 cm. Use c = fA to…

A: Given data The speed of the light in a vacuum is c = 3 x 105 km/s. The wavelength of the photon is…

Q: Describe the electromagnetic spectrum in a few sentences, including a diagram of the wavelength…

A: To explain electromagnetic spectrum with diagram of wavelengths and their applications

Q: Define effect of intensity of light on photocurrent.

A: Given:  Intensity of light

Q: Please answer. In addition to the formation of shadows and eclipses,  what other phenomena prove the…

A: The characteristic of light such that it travels on a straight linear path is called rectilinear…

Q: What is a spectral line?

A: When an electron jumps from a  higher energy level to a lower one, photons are emitted, which…

Q: Define the term Doppler effect?

A: The difference in frequency of a sound wave with respect to an observer nearly to the wave source…

Q: What do you understand by term spectrum?

A: Spectrum is attributed to a specific set of values that varies across a continuum.

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.