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| Letters | Answer | Clue | ||
| 99% | 14 | SPEED OF LIGHT | Exact Match! | |
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| 51% | 15 | Branch of physics that explains the propagation of electromagnetic radiation | ||
noun • The phenomena associated with moving electric charges, and their interaction with electric and magnetic fields; the study of these phenomena. | ||||
| 46% | 7 | Rydberg constant is a fundamental constant in which field of physics? | ||
noun • a wave number characteristic of the wave spectrum of each element | ||||
A Fundamental Constant Of Nature And Physics Defined By The Vacuum Propagation Rate Of Electromagnetic Radiation Exactly 299792458 Metres Per Second
We've checked our database and believe the answer is
SPEED OF LIGHT which was last seen in the Telegraph Giant General Knowledge crossword.
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We think the answer to this crossword clue is:
SPEED OF LIGHT
Updated: December 8, 2025
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We think you're currently doing a Telegraph Giant General Knowledge crossword, and other users also searched for these clues:
Buttercup-like blooms brightening winter’s demise with illimitable golden galaxies, thus delighted in by Wordsworth and, like their etymological namesakes the swallows, regarded as “spring messengers”Term, evocative of a billion failures, for a unit of computing rate equal to one thousand million floating-point operations per second
Clue Last Found In...
| Source | #Number | Answer |
|---|---|---|
| Telegraph Giant General Knowledge12 Apr 2025 | Down 9 | SPEED OF LIGHT |
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Similar Clues
| Clue | Source | |
|---|---|---|
1 | Branch of physics that explains the propagation of electromagnetic radiation | |
2 | Electromagnetic radiation
New York Times -
13 Feb 1984 | New York Times / 13 Feb 1984 |
3 | Has a value that cannot be expressed exactly due to its nature as a fundamental constant | |
4 | Like electromagnetic radiation with the shortest wavelength
New York Times -
21 Jul 2023 | New York Times / 21 Jul 2023 |
5 | Project that analyzes electromagnetic radiation, for short
New York Times -
17 Oct 2015 | New York Times / 17 Oct 2015 |
6 | Quantum of electromagnetic radiation
The Guardian Quick -
11 Jan 2020 | The Guardian Quick / 11 Jan 2020 |
7 | Shaft of light or electromagnetic radiation
The Guardian Quick -
20 Sep 2012 | The Guardian Quick / 20 Sep 2012 |
