Q-1: Real images formed by single convex lenses are always: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. On the same side of the lens an object
b. Inverted
c. Erect
d. Smaller than the object
Click “Show more” to see the answer and explanation.
Answer: b. Inverted
Explanation: When a single convex lens forms a real image, it occurs because the object is placed outside the focal point, causing rays to converge. By optical laws, all real images formed by a single converging lens are inverted relative to the object.
Struggling with your optometry government job preparation? Let Samir Sir, the founder of Smart Optometry, guide you to success. Enroll in our “Gov Job Preparation” course, and we’ll provide the roadmap. Your dream job at GSSSB, AIIMS, RRB, or DHS is within reach!
.
.
Q-2: A ray of light passing through the principal focus of a convex lens, after refraction, will pass: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. Through the principal focus
b. Parallel to the principal axis
c. Without any deviation
d. Will undergo total internal reflection
Click “Show more” to see the answer and explanation.
Answer: b. Parallel to the principal axis
Explanation: According to the rules of refraction, a light ray passing through the principal focus becomes parallel to the principal axis after exiting the lens. This is a fundamental property of convex lenses used in ray diagrams.
.
.
Q-3: An object is placed 12 cm from a convex lens whose focal length is 10 cm. The image must be: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. Virtual and enlarged
b. Virtual and reduced in size
c. Real and reduced in size
d. Real and enlarged
Click “Show more” to see the answer and explanation.
Answer: d. Real and enlarged
Explanation: The object is positioned between the focal point (10 cm) and twice the focal length (20 cm). In this specific zone, a convex lens always produces a real, inverted, and magnified (enlarged) image.
Unlock your potential with our “Gov Job Preparation” course. Gain access to a massive library of 5000+ subject-wise MCQs, 1000+ previous year questions, detailed notes, and video lectures. Everything you need for exams like GSSSB, PSC, and DMER is in one place.
.
.
Q-4: Where should an object be placed so that real and inverted image of the same size is obtained, using a convex lens? (BFUHS Ophthalmic Officer Previous Year MCQs)
a. Between O and F
b. At F
c. At 2 F
d. At infinity
Click “Show more” to see the answer and explanation.
Answer: c. At 2 F
Explanation: When an object is placed exactly at twice the focal length (2F) of a convex lens, the image is formed at 2F on the opposite side. This specific configuration creates a real, inverted image that is identical in size to the object.
.
.
Q-5: Convex lens always gives a real image if the object is situated beyond: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. Optical center
b. Center of curvature
c. Focus
d. Radius of curvature
Click “Show more” to see the answer and explanation.
Answer: c. Focus
Explanation: A convex lens acts as a converging lens and forms a real image for any object placed outside its principal focus. If the object is placed within the focus, the lens acts as a magnifier and creates a virtual, erect image.
Prepare for a full year of opportunities! Our “Gov Job Preparation” course gives you 12 months of access to top-quality materials and support. Cover all major exams like GSSSB, AIIMS, RRB, Ophthalmic Officer without buying multiple courses. It’s the smartest investment for your career.
.
.
Q-6: Parallel rays of light entering a convex lens always converge to: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. Center of curvature
b. The principal focus
c. Optical center
d. The focal plane
Click “Show more” to see the answer and explanation.
Answer: b. The principal focus
Explanation: Rays of light traveling parallel to the principal axis are refracted by the convex lens to meet at a single point. This specific point of convergence on the axis is defined as the principal focus.
.
.
Q-7: The image formed by a concave mirror is real, inverted, and of the same size as that of the object. The position of the object should be: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. At the focus
b. At the center of curvature
c. Between the focus and center of curvature
d. Between the focus and the lens
Click “Show more” to see the answer and explanation.
Answer: b. At the center of curvature
Explanation: For a concave mirror, placing an object at the center of curvature causes light rays to reflect back along their original paths. This results in a real, inverted image that forms at the exact same location and size as the object.
Don’t study alone! Our “Gov Job Preparation” course includes group chat and live support to clear all your doubts instantly. With guidance from Samir Sir and a community of fellow aspirants, you’ll stay motivated and on track.
.
.
Q-8: All are features of image formed by a plane mirror except: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. Same size
b. Real
c. Laterally inverted
d. Same distance from mirror
Click “Show more” to see the answer and explanation.
Answer: b. Real
Explanation: Plane mirrors always form virtual images because the reflected rays appear to diverge from behind the mirror. A real image requires rays to actually converge, which does not happen with a standard plane mirror.
.
.
Q-9: In Mirror, Ray of light passes without deviation, if pass through: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. Optical center
b. Focus
c. Center of curvature
d. Pole
Click “Show more” to see the answer and explanation.
Answer: c. Center of curvature
Explanation: A light ray directed toward the center of curvature of a spherical mirror hits the surface at a 90-degree angle (normal incidence). Consequently, it reflects back along the exact same path without any lateral deviation.
.
Ready to secure your government job in optometry? The “Gov Job Preparation” course is your final destination. With a proven success strategy, expert mentorship, and over 6000 MCQs, we make your preparation seamless and effective. Click the link to begin your journey!
.
Q-10: A positive magnification greater than unity indicates: (BFUHS Ophthalmic Officer Previous Year MCQs)
a. Real image
b. Virtual image
c. Neither real nor virtual image
d. Distorted image
Click “Show more” to see the answer and explanation.
Answer: b. Virtual image
Explanation: Positive magnification signifies an erect image, and a value greater than one means it is enlarged. This combination of an erect, magnified image is characteristic of a virtual image formed by a convex lens.
.
Struggling with your optometry government job preparation? Let Samir Sir, the founder of Smart Optometry, guide you to success. Enroll in our “Gov Job Preparation” course, and we’ll provide the roadmap. Your dream job at GSSSB, AIIMS, RRB, or DHS is within reach!
.
Are you preparing for the BFUHS Ophthalmic Officer exam or other optometry government jobs? 🇮🇳 This blog breaks down the most important Geometrical Optics MCQs from BFUHS Ophthalmic Officer Previous Year MCQs.
We will solve and explain each question in detail, helping you understand the core concepts needed to clear your exam. 🧑🏫 This blog is essential for any optometrist or optometry student targeting government jobs.
🎯 Enroll in Our “Gov Job Preparation” Course! 🎯
Get complete, structured preparation for all optometry government exams (BFUHS Ophthalmic Officer AIIMS, RRB, DHS, GSSSB, DMER, etc.) on our app.
🔗 Course Link: https://osvlt.on-app.in/app/oc/624036/osvlt?utm_source%3Dcopy-link%26utm_medium%3Dtutor-course-referral%26utm_campaign%3Dcourse-overview-app
📚 Download Our App: “Optometry Notes and MCQs” 📚
Access mock tests, previous year papers, video lectures, and detailed notes.
🔗 App Link: https://play.google.com/store/apps/details?id=co.robin.osvlt
📝 In This Blog, We Cover:
This session focuses on key Geometrical Optics topics that frequently appear in BFUHS Ophthalmic Officer Previous Year MCQs and other paramedical exams.
📌Key Topics Covered:
🔹Image formation by Convex Lenses and Concave Mirrors.
🔹Real vs. Virtual Images.
🔹Magnification and Power of Lenses.
🔹Refraction rules.
This Blog is highly beneficial for aspirants of:
🧑⚕️BFUHS Ophthalmic Officer
🧑⚕️ AIIMS Ophthalmic Assistant / Optometrist
🧑⚕️ Ophthalmic Officer (DHS, PSC)
🧑⚕️ GSSSB, DMER, UPSSSC Ophthalmic Officer
🧑⚕️ RRB Optometrist / Paramedical Exams
- Check Our Courses: Ophthalmic Instrumentation, Clinical Refraction, Contact Lens, Binocular Vision, Dispensing Optics, MCQs in Optometry
- Download our App “Optometry Notes & MCQs” from Google Play Store.
.

