100% Free Ray Optics Mock Test for TGT PGT Physics 2025: 30+ Key MCQs [Bilingual]

At Physics Scholar by Anup Sir, we’re committed to helping you ace your exams with our 100% free practice mock test on Ray Optics, featuring 40+ most important MCQs in bilingual format (English and Hindi).

Free Ray Optics Mock Test for TGT PGT Physics
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Are you preparing for TGT or PGT Physics examinations and looking for a reliable way to master Ray Optics? Look no further! At Physics Scholar by Anup Sir, we’re committed to helping you ace your exams with our 100% Free Ray Optics Mock Test, featuring 30+ most important MCQs in bilingual format (English and Hindi).

This article is your one-stop resource for revising key concepts, memorizing critical formulas, and testing your knowledge with a carefully curated quiz. Whether you’re a beginner or aiming to polish your skills, this free mock test will boost your confidence and exam readiness.

Ray Optics is a high-weightage topic in TGT and PGT Physics exams, often contributing significantly to your score. To help you excel, we’ve included a list of key points, a formula table, and a free practice test. Plus, we’ve added FAQs with one-liners and concepts frequently asked in exams to ensure you’re fully prepared. Let’s dive in!

Why Ray Optics is Crucial for TGT PGT Physics Examinations

Ray Optics (or Geometrical Optics) forms the foundation of optics in physics and is a must-master topic for TGT and PGT exams. Questions from this chapter test your understanding of concepts like reflection, refraction, lenses, mirrors, and optical instruments. With the right preparation, you can score full marks in this section!

To make your preparation seamless, we’ve also created free practice tests for other essential topics like Units & Dimensions, Vector Algebra, Straight Line Motion, and Circular Motion. Don’t forget to check out our Live100% Free Fundamental Course for All PGT Physics Examinations with Handwritten Class Notes PDF for comprehensive study material.

Watch This Playlist Lectures before attempting the below Free Ray Optics Mock Test

Key Points to Remember in Ray Optics for TGT PGT Physics Exams

Before jumping into the Free Ray Optics Mock Test, let’s quickly revise the most important concepts in Ray Optics that are frequently tested in TGT and PGT Physics exams. These points are designed to help you recall critical ideas and tackle direct questions:

  1. Laws of Reflection: The angle of incidence equals the angle of reflection, and the incident ray, reflected ray, and normal lie in the same plane.
  2. Laws of Refraction (Snell’s Law): The ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant, given by n_1 \sin \theta_1 = n_2 \sin \theta_2.
  3. Total Internal Reflection: Occurs when the angle of incidence exceeds the critical angle, leading to complete reflection within the denser medium.
  4. Mirror Formula: For spherical mirrors, \frac{1}{f} = \frac{1}{u} + \frac{1}{v}, where f is focal length, u is object distance, and v is image distance.
  5. Lens Formula: Similar to mirrors, \frac{1}{f} = \frac{1}{v} - \frac{1}{u} for thin lenses.
  6. Magnification: For mirrors and lenses, magnification m = \frac{h'}{h} = -\frac{v}{u}, where h' is image height and h is object height.
  7. Refraction at Spherical Surfaces: Uses the formula \frac{n_2}{v} - \frac{n_1}{u} = \frac{n_2 - n_1}{R}.
  8. Optical Instruments: Understand the working of microscopes, telescopes, and their magnifying powers.
  9. Dispersion and Deviation: Study the splitting of light into colors and the deviation caused by prisms.
  10. Sign Convention: Follow the Cartesian sign convention for mirrors and lenses to avoid calculation errors.

These points are your quick revision guide. Keep them handy while solving MCQs or reviewing Physics Scholar by Anup Sir’s handwritten notes from our free fundamental course.

Essential Ray Optics Formulas for TGT PGT Exams

Formulas are the backbone of solving Ray Optics questions. Below is a concise formula table covering the most important equations you need to memorize for TGT and PGT Physics exams, formatted in table:

ConceptFormulaDescription
Mirror Formula\frac{1}{f} = \frac{1}{u} + \frac{1}{v}Relates focal length, object, and image distances for mirrors
Lens Formula\frac{1}{f} = \frac{1}{v} - \frac{1}{u}Relates focal length, object, and image distances for lenses
Magnification (Mirrors/Lenses)m = \frac{h'}{h} = -\frac{v}{u}Calculates magnification for mirrors and lenses
Snell’s Lawn_1 \sin \theta_1 = n_2 \sin \theta_2Governs refraction at the interface of two media
Critical Angle\sin \theta_c = \frac{n_2}{n_1}Condition for total internal reflection
Lens Maker’s Formula\frac{1}{f} = (n - 1)\left(\frac{1}{R_1} - \frac{1}{R_2}\right)Calculates focal length of a lens
Power of a LensP = \frac{1}{f} (in meters)Power of a lens in diopters
Refraction at Spherical Surface\frac{n_2}{v} - \frac{n_1}{u} = \frac{n_2 - n_1}{R}Relates object and image distances for spherical surfaces
Prism Deviation\delta = i + e - ADeviation angle in a prism
Magnifying Power (Microscope)M = \left(\frac{v}{f_o}\right)\left(1 + \frac{D}{f_e}\right)Magnification of a compound microscope
Magnifying Power (Telescope)M = \frac{f_o}{f_e}Magnification of an astronomical telescope

Pro Tip: Memorize these formulas and practice applying them in numerical problems. Pair this with our free practice tests on Units & Dimensions and Vector Algebra to strengthen your foundational knowledge.

Practice with Our Free Ray Optics Mock Test

Ready to test your Ray Optics knowledge? Our 100% Free Ray Optics Mock Test contains 40+ carefully selected MCQs covering all key concepts of Ray Optics. These questions are bilingual (English and Hindi) to cater to all TGT and PGT aspirants. The test is designed to mimic the actual exam pattern, helping you assess your preparation and identify areas for improvement.

To take the Free Ray Optics Mock Test

1. 
If the refractive index of water is 4/3 and that of glass slab is 5/3, then the critical angle of incidence for which a light tending to go from glass to water is: यदि जल का अपवर्तनांक 4 / 3 तथा कांच के गुटके का अपवर्तनांक 5 / 3 है तो कांच से जल में जाते हुए प्रकाश के लिए क्रान्तिक कोण का मान होगा:

2. 
The ratio of the refractive index of red light to blue light in air is: वायु में लाल तथा नीले प्रकाश के अपवर्तनांको का अनुपात होगा:

3. 
A point source of light is kept at a depth of h in water of refractive index 4/3. The radius of the circle at the surface of water through which light emits is: 4 / 3 अपवर्तनांक वाले जल में h गहराई में एक प्रकाश बिंदु स्रोत रखा गया है तो जल की सतह पर वृत्त की त्रिज्या क्या होगी जिससे प्रकाश किरण उत्सर्जित होती है:

4. 
In a concave mirror if $ \mathrm{x}_{1} $ and $ \mathrm{x}_{2} $ are the distances of object and its image respectively from the focus, then the focal length of the mirror is: अवतल दर्पण के लिए यदि $ \mathrm{x}_{1} $ व $ \mathrm{x}_{2} $ वस्तु तथा इसके प्रतिबिम्ब की फोकस से दूरियां है तो दर्पण की फोकस दूरी है:

5. 
The cause of image observed in a desert is: रेगिस्तान में प्रतिबिंब के दिखाई देने का कारण है:

6. 
The dispersive powers of lenses used in an achromatic combination are in ratio 5:3. If focal length of the concave lens is 15 cm , the nature and focal length of the other lens will be: एक अवर्णक युम्म में प्रयुक्त लैंसों की वर्ण विक्षेपण क्षमताओं का अनुपात 5: 3 है यदि एक लेन्स 15 सेमी फोकस दूरी का अवतल लेन्स है तो दुसरे लेन्स की प्रकृति व् फोकस दूरी होगी:

7. 
An equiconvex lens of refractive index 1.6 has power 4D in air. Its power in water is 1.6 अपवर्तनांक वाले एक द्वित्तल लेंस की वायु में क्षमता 4 डायोप्टर है तो जल में इसकी क्षमता होगी

8. 
. Chromatic aberration of a lens is caused by: लेंस में वर्ण विपथन का कारण है:

9. 
If monochromatic light goes through 2 cm of glass or 2.25 cm of water, the optical path is the same. If the refractive index of glass is 1.50 , then what is the refractive index of water? जब एक वर्णीय प्रकाश 2 सेमी कांच या 2.25 सेमी जल से गुजरता है तो इसका प्रकाशीय पथ समान रहता है यदि कांच का अपवर्तनांक 1.50 हो तो जल का अपवर्तनांक होगा:

10. 
Focal length of a convex lens is maximum for: एक उत्तल की फोकस दूरी किसके लिए अधिकतम होती है:

11. 
If a spherical mirror is immersed in a liquid, its focal length will be: यदि एक गोलीय दर्पण को द्रव में डूबा दिया जाए तो इसकी फोकस दूरी

12. 
When an unpolarised light passes through a prism, then which of the following will not occur? जब एक अध्रुवित प्रकाश प्रिज्म से गुजरता है तो निम्न में से क्या घटित नहीं होगा:

13. 
The angle of deviation for a prism is greatest for: प्रिज्म से किस रंग के लिए विचलन कोण अधिकतम है:

14. 
A thin lens is formed by a material of refractive index $ \mu=1.51 $. Both the sides of lens are convex. It is immersed in a liquid of refractive index $ \mu=1.33 $. The lens will behave as: $ \mu=1.51 $ अपवर्तनांक वाले पदार्थ से एक पतला लेन्स बनाया जाता है लेन्स की दोनों पृष्ठ उत्तल है , इसे $ \mu=1.33 $ अपवर्तनांक वाले एक द्रव में डुबाया जाता है तो लेन्स का व्यवहार होगा:

15. 
An achromatic combination of lenses produces: लेंस का अवर्णक संयोजन उत्पन्न करता है:

16. 
C.V. Raman got Nobel Prize for his experiment on : सी वी रमण को उनके किस प्रयोग के लिए नोबेल पुरस्कार दिया गया

17. 
A convex mirror of focal length f produces an image (1 / n) th of the size of the object. The distance of the object from the mirror is: f फोकस दूरी का एक उत्तल दर्पण वस्तु के आकार का 1 / n गुना प्रतिबिंब बनाता है दर्पण से वस्तु की दूरी है:

18. 
In the plano-convex lens the radius of curvature of the convex lens is 10 cm . If the plane side is polished, then the focal length will be: (refractive index $ \mu=1.5 $ ) एक समतलोत्तल लेन्स में उत्तल लेन्स की वक्रता त्रिज्या जाये तो फोकस दूरी हो जाएगी: (अपवर्तनांक $ \mu= $ 1.5)

19. 
Law which states that travelling between two points will follow the rout with smallest optical path length is called:

20. 
Two thin equiconvex lenses each of focal length 0.2 m are placed coaxially with their optic centres 0.5 m apart. Then the focal length of the combination is: 0.2 फोकस दूरी वाले दो पतले द्विउत्तल लेंस समाक्षीय रूप से एक दूसरे के प्रकाशिक केंद्रों से 0.5 मीटर दूरी पर रखे है तो संयोजन की फोकस दूरी होगी:

21. 
The refractive indices of violet and red light are 1.54 and 1.52 respectively. If the angle of prism is 10°,the angular dispersion is: बैगनी तथा लाल रंग के लिए अपवर्तनांक क्रमशः 1.54 हो तथा 1.52 है यदि प्रिज्म कोण 10° हो तो कोणीय विक्षेपण होगा:

22. 
Dispersive power depends on the following: विक्षेपण क्षमता निम्न में से किस पर निर्भर करती है:

23. 
The frequency of a light wave in a material is $ 2 \times 10^{14} \mathrm{Hz} $ and the wavelength is 5000 Å. The refractive index of material will be: किसी माध्यम में प्रकाश की आवृत्ति $ 2 \times 10^{14} $ हर्ट्ज तथा तरंगदैर्ध्य 5000 Å है तो उस माध्यम का अपवर्तनांक होगा:

24. 
The minimum distance between an object and its real image formed by a convex lens is: किसी उत्तल लेन्स के लिए वस्तु तथा इसके द्वारा बने वास्तविक प्रतिबिम्ब के बीच न्यूनतम दूरी है:

25. 
The critical angle is maximum when light travels from: क्रांतिक कोण अधिकतम होगा जब प्रकाश ….. से .. …में यात्रा करती है:

26. 
Relation between critical angels of water and glass is: जल तथा काँच के क्रान्तिक कोणों के बीच संबंध है:

27. 
The Cauchy's dispersion formula is: कॉशी विक्षेपण सूत्र है:

28. 
A lens will be invisible in vacuum if refractive index of material of lens is: निर्वात में एक लेन्स अदृश्य हो जायेगा यदि लेन्स के पदार्थ का अपवर्तनांक होगा:

29. 
Two lenses have dispersive powers in ratio 2:3. These glasses are used to make achromatic lens of focal length 20 cm . The value of focal lengths of two lenses are: दो लैंसों की विक्षेपण क्षमताओं का अनुपात 2: 3 है इन शीशों को उपयोग करके 20 cm फोकस दूरी का अर्वर्ण लेन्स बनाया जाता है लेंसों की फोकस दूरी:

30. 
A straight rod partially immersed in water appears to be inclined at 45° with the surface when viewed vertically through air. What is the actual inclination of the rod? जल में आंशिक रूप से डुबाया गया एक सीधे छड़ को वायु में से ऊर्ध्वाधर देखने पर यह सतह से 45° कोण पर झुकी हुई प्रतीत होती है तो छड़ का वास्तविक झुकाव कितना है:

31. 
To get three images of a single object, one should have mirrors at an angle of : एक वस्तु के तीन प्रतिबिम्ब प्राप्त करने के लिए दर्पणों के बीच कोण होना चाहिए:

32. 
If the sky is seen from the moon's surface, it will appear : यदि चन्द्रमा की सतह से आसमान को देखा जाये तो यह दिखाई देगा:

33. 
Air bubble in water behaves as: जल में वायु का बुलबुला व्यवहार करता है:

34. 
Rainbow is seen due to: इंद्रधनुष दिखाई देने का कारण है

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After completing the test, review your answers and revisit the key points and formulas above. For more practice, explore our free tests on Straight Line Motion and Circular Motion to ensure a well-rounded preparation.

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At Physics Scholar by Anup Sir, we understand the challenges faced by TGT and PGT Physics aspirants. That’s why we provide free resources, including practice tests, handwritten notes, and fundamental courses, to make your preparation stress-free and effective.

Our 100% Free Fundamental Course for All PGT Physics Examinations with Handwritten Class Notes PDF is a must-have resource for every aspirant. It covers all major topics, including Ray Optics, in a concise and easy-to-understand format.

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FAQs: Ray Optics for TGT PGT Physics Examinations

Here are some frequently asked questions about Ray Optics, including one-liners and key concepts commonly tested in TGT and PGT exams, with formulas in LaTeX:

Q1. What is the mirror formula, and how is it used?
A: The mirror formula is \frac{1}{f} = \frac{1}{u} + \frac{1}{v}, where f is the focal length, u is the object distance, and v is the image distance. It’s used to calculate the position of the image formed by spherical mirrors.
Concept: Understand the sign convention and practice numericals to master its application.

Q2. What is total internal reflection?
A: Total internal reflection occurs when light travels from a denser to a rarer medium, and the angle of incidence exceeds the critical angle, given by \sin \theta_c = \frac{n_2}{n_1}, causing complete reflection.
Concept: Critical for understanding optical fibers and prisms.

Q3. What is the lens maker’s formula?
A: The lens maker’s formula is \frac{1}{f} = (n - 1)\left(\frac{1}{R_1} - \frac{1}{R_2}\right), where n is the refractive index, and R_1, R_2 are the radii of curvature of the lens surfaces.
Concept: Essential for calculating the focal length of lenses.

Q4. How is the power of a lens defined?
A: Power of a lens is P = \frac{1}{f} (in meters), measured in diopters.
Concept: Higher power indicates a shorter focal length, crucial for lens combination questions.

Q5. What is the magnifying power of a telescope?
A: The magnifying power of a telescope is M = \frac{f_o}{f_e}, where f_o is the focal length of the objective lens, and f_e is the focal length of the eyepiece.
Concept: Tested in questions about optical instruments.

Q6. Why does dispersion occur in a prism?
A: Dispersion occurs because different wavelengths of light refract at different angles due to the varying refractive index of the prism for each color.
Concept: Key to understanding rainbows and prism-based questions.

For more in-depth explanations, download our free handwritten notes from the Physics Scholar by Anup Sir fundamental course.

Conclusion

Mastering Ray Optics is a game-changer for TGT and PGT Physics aspirants. With our 100% Free Ray Optics Mock Test featuring 40+ bilingual MCQs, key points, and a formula table, you’re well-equipped to tackle this high-scoring topic.

At Physics Scholar by Anup Sir, we’re here to support your journey to success. Take the now, revise the concepts, and share this article with fellow aspirants. Let’s conquer Ray Optics together and ace your TGT/PGT Physics exams!

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Amit Patel
Amit Patel

Hello!  I am Amit Patel From Uttar Pradesh. I have done my  Masters in Physics (2018) & B.Ed. (Education), Now I am working with Physics Scholar (By Anup Sir) as a Technical Team Member & content writer specially on Educational Carrier Counselling for Teaching Exams. I am a lover of Physics so i also explore to write articles on Science & Technology.

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