Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Concepts Of Physics MCQ Edition [Volume 1]PhysicsOptical Instruments

A child has a near point at 10 cm . Determine the maximum angular magnification the child can obtain using a convex lens of focal length 10 cm .

Options

  1. A10
  2. B0.5
  3. C1
  4. D2

Correct answer

D. 2

Step-by-step solution

The maximum angular magnification of a simple microscope is obtained when the final image is formed at the near point of the eye. The formula for maximum angular magnification is given by: m = 1 + D f where D is the near point distance and f is the focal length of the convex lens. Given: D = 10 cm f = 10 cm Substituting the values into the formula: m = 1 + 10 10 m = 1 + 1 = 2

Practice Optical Instruments on Quantrex Academy →

More from Optical Instruments

A person observes several trees in an open space, with the following details given. Arrange the trees in decreasing order of their apparent sizes. Tree Height (m) Distance from theWhen the image is formed at the near point ( 25 cm ) of a normal eye, a simple microscope exhibits a magnifying power of 3.0 . Calculate the magnifying power of this microscope if When the image is formed at the near point ( 25 cm ) of a normal eye, a simple microscope exhibits a magnifying power of 3.0 . Determine the focal length of the microscope.An object is viewed using a simple microscope of focal length 12 cm . To obtain the maximum angular magnification, at what distance from the lens should the object be positioned? TA simple microscope is rated at 5 X for a normal relaxed eye. Determine its magnifying power for a relaxed farsighted eye that has a near point of 40 cm .Determine the maximum magnifying power of a compound microscope equipped with a 25 diopter lens as the objective and a 5 diopter lens as the eyepiece, given a separation of 30 cm bIn a compound microscope, the separation between the objective and the eyepiece is adjustable between 9.8 cm and 11.8 cm . Given that the focal lengths of the objective and the eyeAn eye is capable of distinguishing between two points on an object if their separation is greater than 0.22 mm when the object is held 25 cm from the eye. This object is subsequen Full Optical Instruments list All Concepts Of Physics MCQ Edition [Volume 1] PYQs