A convex lens and a concave lens, each having same focal length of 25 cm, are put in…
Physics · NEET · NTA Exams — Optics
A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of the combination is:
- 25
- 50
- infinite
- zero
Answer
(D) zero
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Two thin lenses of focal length 20 cm and 25 cm are in contact. The effective power of the combination is
- The angle of minimum deviation for an incident light ray on an equilateral prism is equal to its refracting…
- A beam of light composed of red and green rays is incident obliquely at a point on the face of rectangular…
- In an interference experiment, third bright fringe is obtained at a point on the screen with a light of 700…
- Two point white dots are 1 mm apart on a black paper. They are viewed by eye of pupil diameter 3 mm…
- A ball is dropped from a height of 20 m above the surface of water in a lake. The refractive index of water…
- If the intensity ratio for two interfering coherent sources is II , then I_ max -I_ min I_ max +I_ min will…
- A thin glass (refractive index 1.5) lens has optical power of -5[] in air. Its optical power in liquid medium…