Master Optics in Optometry: DSSSB Optometrist Previous Year MCQs
Strengthen your fundamental physics and clinical optics knowledge with this expertly curated set of DSSSB Optometrist Previous Year MCQs. “Optics in Optometry” is a highly weighted technical section that tests both your mathematical speed and conceptual accuracy.
This comprehensive guide breaks down crucial exam topics directly from past papers. You will tackle practical problems like calculating thin lens combinations and prism diopter deviations, while also exploring theoretical concepts such as the reduced schematic eye, Sturm’s conoid, and chromatic aberrations. By consistently practicing these authentic DSSSB Optometrist PYQs, you will master how to quickly solve focal length equations and fully understand the precise refractive power distributions of the human cornea and ocular media.
Review these expertly solved multiple-choice questions with detailed optical explanations to eliminate guesswork, improve your calculation speed, and secure your competitive edge in the upcoming domain-specific recruitment exam.
Practice DSSSB Optometrist Previous Year MCQs on “Optics in Optometer”:
Q-1: Two thin lenses of +2D and -1D, if placed closer to each other, then the focal length of the combination of lenses will be: (DSSSB Optometrist Previous Year MCQs 2019)
a. 1 cm
b. 2 meters
c. 1/2 meter
d. 1 meter
Click “Show more” to see the answer and explanation.
Answer: d. 1 m
When two thin lenses are placed in close contact, their combined optical power is calculated by adding their individual dioptric powers algebraically. Adding +2.00 D and -1.00 D results in a net power of +1.00 D, which translates to a focal length of 1 meter.
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 BFUHS Ophthalmic Officer, GSSSB, AIIMS, RRB, or DHS is within reach!
Q-2: Calculate the power of a lens whose focal length is 0.4 m. (DSSSB Optometrist PYQs 2019)
a. +2.50 Diopters
b. +3.00 Diopters
c. +2.00 Diopters
d. +4.00 Diopters
.
.
Q-3: In the case of reduced schematic eye, anterior and posterior focal points, when measured from anterior surface of the cornea are: (DSSSB Optometrist Previous Year MCQs 2019)
a. 17 and 22.6 mm respectively
b. 22.6 and 17 mm respectively
c. 15.6 and 23 mm respectively
d. 23 and 15.6 mm respectively
Click “Show more” to see the answer and explanation.
Answer: a. 17 and 22.6 mm respectively
The reduced schematic eye is a simplified mathematical model representing the eye as a single spherical refracting surface. In this standard optical model, the anterior focal point is located approximately 17 mm in front of the cornea, while the posterior focal point falls 22.6 mm behind it.
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 BFUHS Ophthalmic Officer, AIIMS, GSSSB, PSC, and DMER is in one place.
Q-4: Light rays passing through ocular media to form an image on retina will show maximum refraction at: (DSSSB Optometrist PYQs 2019)
a. Anterior surface of lens
b. Posterior surface of cornea
c. Anterior surface of cornea
d. Posterior surface of lens
Click “Show more” to see the answer and explanation.
Answer: c. Anterior surface of cornea
The anterior surface of the cornea provides approximately two-thirds of the eye’s total refractive power. This maximum refraction occurs here because the difference in the refractive index between ambient air and the corneal tear film interface is the largest within the entire ocular optical system.
.
.
Q-5: The secondary focal point of a myopic eye is:(DSSSB Optometrist Previous Year MCQs 2019)
a. On the retina
b. Anterior to the retina
c. Posterior to the retina
d. At infinity
Click “Show more” to see the answer and explanation.
Answer: b. Anterior to the retina
In an uncorrected myopic eye, the total refractive power is too strong for the eye’s axial length. Consequently, parallel light rays entering the eye converge prematurely and form their secondary focal point in the vitreous cavity anterior to the retina.
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 BFUHS Ophthalmic Officer, GSSSB, AIIMS, RRB, Ophthalmic Officer without buying multiple courses. It’s the smartest investment for your career.
Lens that shows different absorption according to the plane of polarization of the incident light is known as: (DSSSB Optometrist PYQs 2024)
a. Photochromic lens
b. Polarizing lens
c. Dyed lens
d. Coated lens
Click “Show more” to see the answer and explanation.
Answer: b. Polarizing lens
Polarizing lenses act as optical filters that absorb light differently depending on its plane of polarization. This unique property allows them to selectively block horizontally polarized light, effectively eliminating glare from reflective surfaces.
.
.
Q-7: The refraction of light through astigmatic lenses is in the form of a: (DSSSB Optometrist Previous Year MCQs 2024)
a. Line
b. Vertical oval
c. Sturms conoid
d. Horizontal oval
Click “Show more” to see the answer and explanation.
Answer: c. Sturms conoid
An astigmatic lens has unequal refractive powers in its two principal meridians, causing light rays to focus at two distinct, perpendicular focal lines. The three-dimensional, geometrically complex bundle of light rays formed between these two focal lines is known as the conoid of Sturm.
Don’t study alone! Our “Gov Job Preparation” course includes group updates and live support to clear all your doubts. With guidance from Samir Sir and a community of fellow aspirants, you’ll stay motivated and on track.
Q-8: Which type of aberration occurs when different wavelengths are focused at different distances? (DSSSB Optometrist PYQs 2024)
a. Chromatic aberration
b. Spherical aberration
c. Coma
d. Astigmatism
Click “Show more” to see the answer and explanation.
Answer: a. Chromatic aberration
Chromatic aberration is an optical defect that arises when a lens fails to focus all colors to the exact same convergence point. It happens because lenses have different refractive indices for different wavelengths of light, causing them to focus at varying distances.
.
.
Q-9: The image formed by a prism is: (DSSSB Optometrist Previous Year MCQs 2024)
a. Erect
b. Real
c. Inverted
d. Shifted towards the apex
Click “Show more” to see the answer and explanation.
Answer: d. Shifted towards the apex
When light passes through an optical prism, the rays are physically refracted and deviated toward the thicker base of the prism. Because the human visual system projects incoming light rays backward in a straight line, the resulting virtual image appears displaced toward the prism’s apex.
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 prism of 1PD will displace the image of an object placed 100 cm away by: (DSSSB Optometrist PYQs 2024)
a. 1 m
b. 1 cm
c. 100 cm
d. 100 m
Click “Show more” to see the answer and explanation.
Answer: b. 1 cm
A prism diopter is a standard unit of optical measurement that quantifies the geometric deviation of light. By strict definition, a prism of 1 prism diopter will displace a beam of light by exactly 1 centimeter on a flat surface situated 100 centimeters away.
.
Q-11: [Paste Your Question Here]
A) Option 1
B) Option 2
C) Correct Option
D) Option 4
Explanation: [Paste your detailed explanation here so Google can index it.]
Q-12: [Paste Your Question Here]
A) Option 1
B) Correct Option
C) Option 3
D) Option 4
Unlock the Full Question Bank
Get access to all remaining premium MCQs, detailed explanations, and complete subject notes. Enroll in our Govt Job Preparation Course to secure your success.
.
DSSSB Optometrist Previous Year MCQs
Subject-Wise Solved Papers (PYQs)
Boost your exam preparation by practicing with authentic DSSSB Optometrist Previous Year MCQs. Click on any specific subject above to access highly targeted previous year questions, answers, and detailed explanations directly mapped to the DSSSB exam syllabus.
.
Master Your Gov Job Prep
Join our comprehensive “Gov Job Preparation” course available exclusively on the Optometry Notes & MCQs App.
The Ultimate Success Strategy
Follow this proven sequence to maximize your preparation and secure your goal.
Subjects wise Theory Notes
Build a strong foundation by mastering the core theoretical concepts for each subject.
Premium Lectures & Videos
Deepen your understanding with expert video explanations and fundamental optometry lectures.
Subjects wise MCQs
Test your knowledge and practice applying concepts with targeted multiple-choice questions.
Previous Year MCQs
Familiarize yourself with actual exam patterns and gauge your readiness with past papers.
Ready to Start Your Journey?
.
About the DSSSB Optometrist Recruitment
Are you aiming to crack the DSSSB Optometrist vacancy? The Delhi Subordinate Services Selection Board (DSSSB) regularly conducts exams to recruit qualified professionals for the Health & Family Welfare Department, Govt. of NCT of Delhi. Securing this highly coveted Group ‘C’ government job requires a deep understanding of the official criteria and exam structure.
Here is a complete overview of the DSSSB Optometrist vacancy:
- About DSSSB: The board recruits candidates for various departments under the Government of NCT of Delhi. The Optometrist position falls under the General Central Service, Non-Gazetted, Non-Ministerial category.
- Eligibility Criteria: Candidates must have passed Class 12th in Science from a recognized board and possess a 4-year Degree in Optometry from a recognized university. The standard age limit is between 21 and 30 years, with official age relaxations applicable for reserved categories.
- Exam Pattern: The One Tier (Technical) examination consists of a Computer Based Test (CBT) featuring 200 Multiple Choice Questions (MCQs) worth 200 marks, to be completed in a 2-hour duration. Accuracy is critical, as a negative marking penalty of 0.25 marks applies to every incorrect answer.
- Syllabus Breakdown: The exam is split into two halves. Section-A (100 marks) tests General Awareness, General Intelligence & Reasoning, Arithmetical & Numerical Ability, Hindi Language, and English Language. Section-B (100 marks) is exclusively domain-specific, testing the candidate’s core optometry knowledge based on their prescribed qualification.
- Salary Structure: Selected candidates are placed in Pay Level 5, which offers a highly competitive basic pay scale ranging from ₹29,200 to ₹92,300.
Practicing previous year MCQs is the best way to conquer this syllabus, improve your speed, and successfully secure your spot in the next DSSSB Optometrist vacancy.
👉 View Full Course Overview & Success Stories
📲 Download the Optometry Notes & MCQs App on Google Play Store


