2. Sample Papers
  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main - Mock Test - 13

  • question_answer
    The focal length of lens of refractive index \[1.5\] in air is 30 cm. When it is immersed in water of refractive index \[4/3,\]then find its focal length (in cm).

    Answer:

    120


You need to login to perform this action.
You will be redirected in 3 sec spinner