Which is not correctly matched?

Answer: Telescope – Marconi is not correctly matched.

Explanation: Guglielmo Marconi was a pioneer of wireless communication and radio, not the telescope. The telescope was developed in the early 17th century (Hans Lippershey is often credited) and was significantly improved by Galileo.

• Law of Gravitation — Isaac Newton: Newton formulated the universal law of gravitation, describing gravitational attraction between masses.

• Theory of Relativity — Albert Einstein: Einstein developed special and general relativity, transforming our understanding of space, time, and gravity.

• Dynamite — Alfred Nobel: Alfred Nobel invented and patented dynamite in the 19th century.

How to check: Verify each inventor by their known inventions or discoveries. The incorrect pairing is the one where the named inventor is historically associated with a different invention.