An object is placed at a distance of 10 cm from a co-axial combination of two lenses

An Object Is Placed At A Distance Of 10 Cm Physics Question

An object is placed at a distance of 10 cm from a co-axial combination of two lenses A and B in contact. The combination forms a real image three times the size of the object. If lens B is concave with a focal length of 30 cm. The nature and focal length of lens A is

Options

(a) convex, 12 cm
(b) concave,12 cm
(c) convex, 6 cm
(d) convex, 18 cm

Correct Answer:

convex, 6 cm

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

Related Questions:

  1. The de-broglie wavelength of an electron in 4th orbit is
  2. In common base mode of a transistor, the collector current is 5.488 mA
  3. An unpolarised beam of intensity I is incident on a pair of nicols making an angle
  4. The ratio of minimum wavelengths of Lyman and Balmer series will be
  5. Which of the following does not increase regularly?

Topics: Ray Optics (94)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*