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Geometrical Optics · 2020 · 8 Jan · Shift 1

3 Physics questions from this JEE Main paper
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Geometrical Optics · 2020 · 8 Jan · Shift 1

3 Physics questions from this JEE Main paper

  1. Q50.A point object in air is in front of the curved surface of a plano-convex lens. The radius of curvature of the curved surface is 30 cm and the refractive index of the lens material is 1.5, then the focal length of the lens (in cm) is ​…
    Physics · Geometrical Optics · Numerical
  2. Q52.The critical angle of a medium for a specific wavelength, if the medium has relative permittivity 3 and relative permeability 34​ for this wavelength, will be :
    Physics · Geometrical Optics · MCQ
  3. Q60.The magnifying power of a telescope with tube 60 cm is 5. What is the focal length of its eye piece ?
    Physics · Geometrical Optics · MCQ