Moderate

Pinhole camera was invented by:

Correct answer: C. Ibn-Al-Haitham

  • A. Al-Beruni
  • B. Yaqoob Al-Kindi
  • C. Ibn-Al-Haitham
  • D. Al-Khwarizmi

Explanation

The pinhole camera, also known as the camera obscura, is an optical device that uses a small hole or aperture to project an inverted image of the external scene onto a flat surface. The invention of the pinhole camera is attributed to various historical figures, but Ibn al-Haytham (also known as Alhazen) is often credited with significant advancements in understanding the camera obscura.

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Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.

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