Tamil Nadu State board (Class 10) › Optics › Question #8393
Single Choice Moderate

QWhen an object is placed at the focus

ID: #8393 Optics 122 views
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#8393Q ID
ModerateDifficulty
OpticsTopic
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  • A Real image is formed at infinity ✔ ✖
  • B Real and inverted image is formed behind the centre of curvature ✔ ✖
  • C Virtual image is formed at the focus ✔ ✖
  • D Virtual image is formed at infinity ✔ ✖
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Explanation

When an object is placed at focus real image is formed at infinity.The size of the image is much larger than its original.

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