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Question

Visible Radiation was discovered by:

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Isaac Newton

Identifying Visible Radiation Discoverer

The question asks who discovered Visible Radiation.

Correct Answer: Isaac Newton

Newton's Contribution to Visible Light

Isaac Newton is credited with the discovery related to visible radiation, specifically understanding its nature as a spectrum of colors.

  • Through his experiments with prisms in the 17th century, Newton demonstrated that white light is composed of different colors (the visible spectrum).
  • He showed that a prism could refract white light into its constituent colors and that recombining these colors could recreate white light.
  • This work laid the foundation for understanding optics and the electromagnetic spectrum, particularly the portion visible to the human eye.

While other scientists listed made significant contributions to physics (Becquerel - radioactivity, Marconi - radio waves, Rontgen - X-rays), Isaac Newton's experiments directly addressed the composition and behavior of visible light.

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Important Questions from Invention and Discoveries

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