Related Questions

  1. A concave lens of focal length f forms an image which is 1/3 times the size
  2. From a disc of radius R, a concentric circular portion of radius r is cut-out so
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  4. If the binding energy of the nucleon in ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06 MeV
  5. If R is the radius of earth, the height at which the weight of a body 1/4 of its weight