Exams › NEET › Physics

Two lenses of power +12 and – 2 diopters are placed in contact. What will the focal length of combination

1. 10 cm
2. 12.5 cm
3. 16.6 cm
4. 8.33 cm (SECTION-B)

Correct answer: 10 cm

Related NEET Physics questions

• A ray is reflected in turn by three plain mirrors mutually at right angles to each other. The angle between the incident and the reflected rays is
• To get three images of a single object, one should have two plane mirrors at an angle of
• A light beam is being reflected by using two mirrors, as in a periscope used in submarines. If one of the mirrors rotates by an angle  , the reflected light will deviate from its original path by the angle
• In a concave mirror experiment, an object is placed at a distance 1 x from the focus and the image is formed at a distance 2 x from the focus. The focal length of the mirror would be
• A ray of light is incidenting normally on a plane mirror. The angle of reflection will be
• A man having height 6 ft. He observes image of 2 ft height erect, then mirror used is

⚔️ Practice NEET Physics free + battle 1v1 →