Ray Optics: JEE Main Physics Previous Year Questions

521 previous year questions from Ray Optics. Here are the 25 most important ones; open any question for the correct answer and a full step-by-step solution.

1. $A combination of two thin lenses in contact have power + 10 D . The power reduces to + 6 D when the lenses are 0.25 m apart. The power of individual lens is$
2. $The twinkling effect of star light is due to$
3. $Which of these is not due to total internal reflection?$
4. $What is the relative decrease in focal length of a lens for an increase in optical power by 0.1 D from 2.5D? ['D' stands for dioptre]$
5. $The exit surface of a prism with refractive index is coated with a material having refractive index . When this prism is set for minimum angle of devia…$
6. $Two convex lenses of focal length 20 cm each are placed coaxially with a separation of 60 cm between them. The image of the distant object formed by the combination is at\dots$
7. $A person wears glasses of power - 2.0 D. The defect of the eye and the far point of the person without the glasses will be$
8. $To remove myopia (short sightedness) a lens of power 0.66 D is required. The distant point of the eye is approximately$
9. $The time required for the light to pass through a glass slab (refractive index ) of thickness is (…$
10. $When an object is kept at a distance of 30 cm from a concave mirror, the image is formed at a distance of 10 cm from the mirror. If the object is moved\dots$
11. $Consider light travelling from a medium A to medium B separated by a plane interface. If the light undergoes total internal reflection during its travel from medium\dots$
12. $For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behind the cornea is 20 D. Using this information,\dots$
13. $If the critical angle for total internal reflection from a medium to vacuum is 45^{\circ}, then velocity of light in the medium is [NEET 2020]$
14. $If ϵ_{0} and μ_{0} are the permittivity and permeability of free space and ϵ and μ are the corresponding quantities for a medium, th\dots$
15. $The image of an object placed in air formed by a convex refracting surface is at a distance of behind the surface. The image is real and is at…$
16. $Which of the phenomenon is not common to sound and light waves ?.$
17. $In Young’s double slit experiment the separation d between the slits is 2 mm, the wavelength λ of the light used is 5896 A ˚ and distance D between the screen and slits\dots$
18. $Focal length of a convex lens is 20 cm and its RI is 1.5 . It produces an erect, enlarged image if the distance of the object from the lens is$
19. $Image is formed for the short sighted person at$
20. $A ray of light is incident at from a medium of refractive index 2 into a medium of refractive index 1 , then the angle of refraction is$
21. $Five persons P_{1}, P_{2}, P_{3}, P_{4} and P_{5} recorded object distance (u) and image distance (v) \dots$
22. $A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination oflenses. The power in diopters of the combination is$
23. $The wavelength of light, while it is passing through water is 540 nm . The refractive index of water is . The wavelength of the same light when it is passing throug…$
24. $For a transparent prism, if the angle of minimum deviation is equal to its refracting angle, the refractive index of the prism satisfies.$
25. $A convex lens of refractive index 1.5 and focal length is immersed in water. The difference in focal lengths of the given lens when it is in water…$

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Ray Optics: JEE Main Physics Previous Year Questions

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