NCERT Class 12 Physics Chapter 1 Ray Optics and Optical Instruments Test Mock Test
This free online test covers Chapter 1, Ray Optics and Optical Instruments, from the NCERT Class 12 Physics Part II textbook. The 30 questions are written directly from the chapter — definitions, processes, worked examples and the points the book italicises — so a score here tells you how much of the chapter actually stuck, not how well you guess. Each answer carries an explanation that says why the right option is right and why the other three fail, which is where most of the learning happens. Attempt it after your first read of the chapter, then again before the exam. There is no negative marking, and you can review the full solution the moment you submit.
Duration
30 mins
Questions
30 MCQs
Total Marks
30 pts
Negative
0 per wrong
Topics Covered in This Paper
Sample Questions
Q1.Light is the part of the electromagnetic spectrum that the human retina can detect, and its wavelength range is given in the chapter as:
- AAbout 400 pm to 750 pm
- BAbout 400 nm to 750 nm
- CAbout 40 nm to 75 nm
- DAbout 4 mm to 7.5 mm
Q2.The intuitive idea that light travels in a straight line can be reconciled with light being a wave because:
- ALight waves travel far faster than sound waves and so cannot bend
- BThe wavelength of light is very large compared with the size of ordinary objects
- CThe wavelength of light is very small compared with the size of the ordinary objects we encounter, which are a few cm or larger
- DLight waves are transverse, and transverse waves never spread out
Q3.In applying the laws of reflection to a spherical mirror, the normal at the point of incidence is:
- AAlong the principal axis, whatever the point of incidence
- BPerpendicular to the radius at the point of incidence
- CAlong the radius, that is the line joining the centre of curvature to the point of incidence
- DAlong the tangent to the surface at the point of incidence
Before you begin
The test will auto-submit when the timer runs out.
Each correct answer carries +1 marks.
Each wrong answer carries -0 marks.
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Disclaimer: The questions provided here are extracted and digitized from previous year papers using automated processes. They may contain typographical errors, formatting issues, or minor variations from the actual examination paper. While we have done our best to verify the accuracy of the official answer keys, discrepancies may occasionally exist. Please refer to the official commission website for the most authentic paper.
Timer starts immediately and keeps running even if you close the tab. Make sure you have 30 uninterrupted minutes.
FAQ
Frequently asked questions
Frequently Asked Questions
- How many questions are in the NCERT Class 12 Physics Chapter 1 Ray Optics and Optical Instruments Test mock test?
- This paper has 30 multiple-choice questions carrying 30 marks in total, to be attempted in 30 minutes.
- Is the NCERT Class 12 Physics Chapter 1 Ray Optics and Optical Instruments Test mock test free to attempt?
- Yes. You can attempt the full paper online for free on AI Test Planet, and see your score and correct answers immediately after submitting.
- Does this paper have negative marking?
- No, there is no negative marking on this paper, so an attempted guess costs you nothing.
- Are solutions and explanations available?
- Yes. After you submit, every question shows the correct answer with a step-by-step explanation, along with a topic-wise breakdown of your performance.