A point object is placed in air at a distance of 4R on the principal axis of a convex…
Physics · Class 12 · CBSE — Ray Optics & Optical Instruments
A point object is placed in air at a distance of 4R on the principal axis of a convex spherical surface of radius of curvature R separating two mediums, air and glass. As the object is moved towards the surface, the image formed is:
- always real
- always virtual
- first virtual and then real
- first real and then virtual
Answer
(A) always real
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A ray of light travels from a denser to a rarer medium. After refraction, it bends away from the normal. When…
- The frequency of a light wave in a material is 2 10 14 Hz and wavelength is 5000 A . The refractive index of…
- A point object is kept 60 cm in front of a spherical convex surface ( n =1.5 , radius of curvature 40 cm)…
- Two plane mirrors M 1 and M 2 are inclined at angle q as shown in the figure. A ray of light 1, which is…
- Assertion (A): Plane and convex mirrors cannot produce real images under any circumstance. Reason (R): A…
- Which of the following colours of white light deviated most when passes through a prism?
- A biconvex lens of glass having refractive index 1.47 is immersed in a liquid. It becomes invisible and…
- A ray of light travels from a denser to a rarer medium. After refraction, it bends away from the normal. When…
More Ray Optics & Optical Instruments questions · Browse all practice questions