If light were passed through a round hole instead of a thin slit in a spectroscope, how would the spectral “lines” appear? What is the drawback of a hole in comparison with a slit?

Q: If a star has a peak wavelength of 450 nm (violet). What is the corresponding frequency of this…

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Q: (What parts does an X-ray diffraction device consist of and explain what these parts are used for.)

A: To diffract X ray , the instrument used is known as diffractometer .  .

Q: In a grating spectrum, which spectral line in fourth order will overlap with third order line of…

A: Let the wavelength is denoted by λ and the number of line is denoted by n. For grating spectrum…

Q: The figure below shows a graph of intensity as a function of angle for X-ray diffraction in a given…

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Q: Why do photographers use a red light in the darkroom when developing black and white film?

A: Black and white film, also known as orthochromatic films, are blue and green sensitive light films.…

Q: What do you understand by the invisible spectrum?

A: The visible spectrum of light consists of 7 colors. i.e. Violet, Indigo, Blue, Green, Yellow, Orange…

Q: Fluorescent lights tend to emit less of what color?

A: A Fluorescent tube is a low pressure mercury vapour gas discharge lamb that used the property of…

Q: Monochromatic beams are passed on the diffraction grid with a lattice count of 100 lattice/cm of…

A: Given: 100 lattice/cm = 10000 lattice/m 3rd measured dark from center = 5.5 mm = 5.5×10-3 m Gap…

Q: Which have longest wavelengths- light waves, X-rays or radio waves?

A: According to the electromagnetic spectrum the range of wavelength for different type of…

Q: Calculate the frequency and wavelength of a photo having an energy of 1.5 eV

A: Given Data : The energy of the photon is given as E = 1.5 eV.

Q: Does it INCREASE, DECREASE or REMAIN THE SAME? As the slits move farther from each other, the…

A: The given problem is based on wave optics. To solve the given problem we will write down the…

Q: X-rays have a wavelength small enough to image individual atoms, but are challenging to detect…

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Q: The longest wavelength within the visible spectrum is what light?

A: When a light passes through a prism, the wavelengths separate into the 7 colours of the as each…

Q: How

A: Every part of the electromagnetic spectrum has multiple applications in our everyday lives, and many…

Q: The purpose of choke in tube light is?

A: When the switch is ON, in a tube light choke is nothing but the coil/ballast ( inductor) which is…

Q: Does light interact with a detector in a wavelike or a particle-like way?

A: For a detector to detect light, light should transfer energy to detector when it is incident on it.…

Q: How do the surface temperatures of reddish, bluish, and whitish stars compare?

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Q: Why is sky wave propagation of signals restricted to a frequency of 30 MHz?

A: The skywave propagation is the emission of waves from the source that hit the earth's ionosphere and…

Q: Is it possible for the first-order spectrum to overlap the second-order spectrum? Explain, assuming…

A: To determine: Is it possible for the first-order spectrum to overlap the second-order spectrum?…

Q: One of the technical challenges facing the original developers of color television was the design of…

A: Einstein said that light could be seen as particles. And in every particle of light, there is given…

Q: Within 2 minutes, 2 million photons of monochromatic green light are shone on a 3.2 x 10^-6 m^2…

A: Given data: Time t = 2 min Light = green Number of photons n = 2 million Area A=3.2×10-6 m2

Q: Suppose a 490 nm wavelength of light enters your eyes, what receptors in retina of your eyes will be…

A: Range of blue color wavelength: 440 nm to 490 nm Range of green color wavelength: 490 nm to 570 nm…

Q: appears 8. In a two-slit experiment that uses monochromatic light, a at the center of the screen. A.…

A: In two slit experiment, uses monochromatic light.

Q: The width of the central bright fringe in a diffraction pattern on a screen is identical when either…

A: Given data The wavelength of the optical light is given as λ=589 nm.

Q: violet, prism, mixture, absorb, reflects, blue, yellow, black, white, spectrum 1- When white light…

A: When white light enters into a prism, it breaks into full spectrum of colors. The last color of the…

Q: For an spectrometer lecture of 172 degrees- 30’, what would be the diffraction angle? Select the…

A: As we know that: 1 degree equivalent to 60 minutes: So, 30 minutes equivalent to 30/60 degrees which…

Q: ed slits though which light passed in

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Q: Calculate the wavelength of a soccer ball with a mass of 500 g that moves at a speed of 72 km/h, Is…

A: Given Data: m = 500 g = 0.5 kg v = 72 km/h = 20 m/s

Q: Would a beam of protons in a “proton microscope” exhibit greater or less diffraction than electrons…

A: It is known that protons are nearly 2000 times heavier than the electrons.

Q: You would like to observe an E. coli bacterium that is 2.15 μm (micrometers) long. Because…

A: The energy of a photon of a given wavelength λ is given by E = hcλ where h is Planck's constant and…

Q: In electron microscopy define magnification and resolution and what is the difference between  the…

A: Electron microscopy is a technique used to see very small samples clearly. It makes use of beam of…

Q: Describe the Grating Spectrographs?

A: A diffraction grating is an optical element, which separates (disperses) polychromatic light into…

Q: What is a photoresist?

A: A unique subset of stimuli-responsive materials that alter in response to light exposure are…

Q: A spotlight is coated so that it won’t transmit yellow light from its white hot filament .what color…

A: Given:The spotlight having white light coated to prevent the transmission of yellow light.

Q: Coherent diffraction means

A: Required :: What does coherent diffraction mean.

Q: What is the smallest wavelength, in nm, of light that we can normally see?

A: The visible light in the light spectrum is the segment of the electromagnetic spectrum that the…

Q: When ultraviolet light shines on glass, what does it do to electrons in the glass structure?

A: Ultraviolet light is the light having wavelength less than the violet color's wavelength. It has…

Q: A blackbody radiator in the shape of a sphere has a surface area of 152 If it has a temperature of…

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Q: The frequency of violet light is about twice that of red light. How does the energy of a violet…

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Q: What evidence can you cite for the wave nature of light? For the particle nature of light?

A: Wave nature and the particle nature

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.