Which of these scientists is NOT linked with the invention of television? 

The correct answer Christiaan Huygens.

Key Points

• John Logie Baird:
  • Also known as 'The Father of Television', was a very famous Scottish engineer and inventor of one of the first televisions.
  • He demonstrated his working television on 26 January 1926.
  • He also demonstrated colour television in 1928.
• Vladimir K Zworykin:
  • One of the foremost figures in the complex history of television is Vladimir Zworykin.
  • He invented the “iconoscope,” “kinetoscope,” and “storage principle” that became the basis of TV as we know it.
• Philo Farnsworth:
  • Philo Farnsworth conceived the world's first all-electronic television at the age of 15.
  • By the time he died, he had earned over 300 U.S. and foreign patents for electronic and mechanical devices.

Additional Information

• Huygens wave theory of Light:
  • The name of Dutch physicist Christiaan Huygens is particularly associated with the wave theory of light.
  • According to this theory, light travels in the form of waves, leaving the light source, these waves travel in all four directions at the speed of light in a vacuum.
  • Light waves need a medium for propagation.
  • The speed of light in a vacuum is 3 × 108 m/s.
  • When these waves fall on the retina of our eye, we start seeing the object.
  • In 1678, Huygens proposed that every point that a luminous disturbance meets turns into a source of the spherical wave itself.
  • The sum of the secondary waves, which are the result of the disturbance, determines what form the new wave will take.
  • This theory of light is known as the ‘Huygens’ Principle.