A report on Light, X-ray and Black hole

A triangular prism dispersing a beam of white light. The longer wavelengths (red) and the shorter wavelengths (blue) are separated.
Natural color x-ray photogram of a wine scene
Direct image of a supermassive black hole at the core of Messier 87
The electromagnetic spectrum, with the visible portion highlighted
Example of a Crookes tube, a type of discharge tube that emitted X-rays
Animated simulation of a Schwarzschild black hole with a galaxy passing behind. Around the time of alignment, extreme gravitational lensing of the galaxy is observed.
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Wilhelm Röntgen
Simulated view of a black hole in front of the Large Magellanic Cloud. Note the gravitational lensing effect, which produces two enlarged but highly distorted views of the Cloud. Across the top, the Milky Way disk appears distorted into an arc. Published in 2019.
Beam of sun light inside the cavity of Rocca ill'Abissu at Fondachelli-Fantina, Sicily
Hand mit Ringen (Hand with Rings): print of Wilhelm Röntgen's first "medical" X-ray, of his wife's hand, taken on 22 December 1895 and presented to Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896
Gravitational time dilation around a black hole
Due to refraction, the straw dipped in water appears bent and the ruler scale compressed when viewed from a shallow angle.
Taking an X-ray image with early Crookes tube apparatus, late 1800s. The Crookes tube is visible in center. The standing man is viewing his hand with a fluoroscope screen. The seated man is taking a radiograph of his hand by placing it on a photographic plate. No precautions against radiation exposure are taken; its hazards were not known at the time.
The ergosphere is a region outside of the event horizon, where objects cannot remain in place.
Hong Kong illuminated by colourful artificial lighting.
Surgical removal of a bullet whose location was diagnosed with X-rays (see inset) in 1897
Gas cloud being ripped apart by black hole at the centre of the Milky Way (observations from 2006, 2010 and 2013 are shown in blue, green and red, respectively).
Pierre Gassendi.
Images by James Green, from "Sciagraphs of British Batrachians and Reptiles" (1897), featuring (from left) Rana esculenta (now Pelophylax lessonae), Lacerta vivipara (now Zootoca vivipara), and Lacerta agilis
Artist's impression of supermassive black hole seed
Christiaan Huygens.
1896 plaque published in "Nouvelle Iconographie de la Salpetrière", a medical journal. In the left a hand deformity, in the right same hand seen using radiography. The authors named the technique Röntgen photography.
Simulated event in the CMS detector: a collision in which a micro black hole may be created
Thomas Young's sketch of a double-slit experiment showing diffraction. Young's experiments supported the theory that light consists of waves.
A patient being examined with a thoracic fluoroscope in 1940, which displayed continuous moving images. This image was used to argue that radiation exposure during the X-ray procedure would be negligible.
This artist's impression depicts the paths of photons in the vicinity of a black hole. The gravitational bending and capture of light by the event horizon is the cause of the shadow captured by the Event Horizon Telescope.
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Chandra's image of the galaxy cluster Abell 2125 reveals a complex of several massive multimillion-degree-Celsius gas clouds in the process of merging.
Predicted appearance of a non-rotating black hole with toroidal ring of ionised matter, such as has been proposed as a model for Sagittarius A*. The asymmetry is due to the Doppler effect resulting from the enormous orbital speed needed for centrifugal balance of the powerful gravitational attraction of the hole.
Phase-contrast X-ray image of spider
Black hole with corona, X-ray source (artist's concept)
X-rays are part of the electromagnetic spectrum, with wavelengths shorter than UV light. Different applications use different parts of the X-ray spectrum.
NASA simulated view from outside the horizon of a Schwarzschild black hole lit by a thin accretion disk.
Ionizing radiation hazard symbol
Blurring of X-rays near black hole (NuSTAR; 12 August 2014)
Attenuation length of X-rays in water showing the oxygen absorption edge at 540 eV, the energy−3 dependence of photoabsorption, as well as a leveling off at higher photon energies due to Compton scattering. The attenuation length is about four orders of magnitude longer for hard X-rays (right half) compared to soft X-rays (left half).
A Chandra X-Ray Observatory image of Cygnus X-1, which was the first strong black hole candidate discovered
Spectrum of the X-rays emitted by an X-ray tube with a rhodium target, operated at 60 kV. The smooth, continuous curve is due to bremsstrahlung, and the spikes are characteristic K lines for rhodium atoms.
Magnetic waves, called Alfvén S-waves, flow from the base of black hole jets.
Patient undergoing an x-ray exam in a hospital radiology room.
Detection of unusually bright X-Ray flare from Sagittarius A*, a black hole in the centre of the Milky Way galaxy on 5January 2015
A chest radiograph of a female, demonstrating a hiatal hernia
Simulation of gas cloud after close approach to the black hole at the centre of the Milky Way.
Plain radiograph of the right knee
An infographic explaining in detail the appearance of a black hole. The photon sphere surrounds the black hole's shadow.
Head CT scan (transverse plane) slice – a modern application of medical radiography
Abdominal radiograph of a pregnant woman, a procedure that should be performed only after proper assessment of benefit versus risk
Each dot, called a reflection, in this diffraction pattern forms from the constructive interference of scattered X-rays passing through a crystal. The data can be used to determine the crystalline structure.
Using X-ray for inspection and quality control: the differences in the structures of the die and bond wires reveal the left chip to be counterfeit.
X-ray fine art photography of needlefish by Peter Dazeley

A black hole is a region of spacetime where gravity is so strong that nothing – no particles or even electromagnetic radiation such as light – can escape from it.

- Black hole

In this sense, gamma rays, X-rays, microwaves and radio waves are also light.

- Light

He based it on the electromagnetic theory of light.

- X-ray

Based on observations in Greenwich and Toronto in the early 1970s, Cygnus X-1, a galactic X-ray source discovered in 1964, became the first astronomical object commonly accepted to be a black hole.

- Black hole

It features stars being torn apart by black holes, galactic collisions, and novae, and neutron stars that build up layers of plasma that then explode into space.

- X-ray

In other words, it would become what is now called a black hole.

- Light
A triangular prism dispersing a beam of white light. The longer wavelengths (red) and the shorter wavelengths (blue) are separated.

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