An object has image thrice of its original size when kept at and from a convex lens. Focal length of the lens is |
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a) |
8 |
b) |
16 |

c) |
Between 8 and |
d) |
Less than 8 |

An object has image thrice of its original size when kept at and from a convex lens. Focal length of the lens is |
|||

a) |
8 |
b) |
16 |

c) |
Between 8 and |
d) |
Less than 8 |

1 Answer

127 votes

, using For virtual image …(i) For real image …(ii) Solving (i) and (ii) we get |

127 votes

127