Challenge your friends

Try this Chapter 9 - Ray Optics and Optical Instruments quiz on Teachoo. Can you beat me?

WhatsApp Telegram

See class leaderboard →
Teachoo Quiz

Class 12 Physics Chapter 9 - Ray Optics and Optical Instruments MCQ and Assertion Questions

CBSE Past Year MCQ Quiz · Class 12 · Physics · CBSE

Preparing for CBSE

Class leaderboard →

Chapter 9 - Ray Optics and Optical Instruments | 5 questions | about 4 minutes

Practise Chapter 9 - Ray Optics and Optical Instruments with Teachoo's CBSE Past Year MCQ Quiz (Class 12 · Physics · CBSE). Practise these questions in a free interactive quiz with answer feedback.

Attempt time 0:00
This question 0:00
Question 1 of 5
Advertisement
Question 1 of 5
CBSE Past Year 2026

A ray of yellow light undergoes total internal reflection when it is incident at the interface of two media. This ray is successively replaced by the ray of blue, green and red lights. Which of the following statements is true if the angle of incidence is same in all cases ?

Select an option to see the answer, or skip this question.
Question 2 of 5
CBSE Past Year 2026

A thin plano-convex lens and a thin equi-concave lens are kept coaxially in contact as shown in the figure. Assuming both the lenses are made of glass of refractive index \(\mu\), and R is the radius of curvature of each curved surface, the focal length of the combination is:

Plano-convex and equi-concave lenses in contact

Select an option to see the answer, or skip this question.
Question 3 of 5
CBSE Past Year 2026

A telescope has an objective lens of focal length 144 cm and an eyepiece of focal length 6·0 cm. The magnifying power and the length of telescope tube will be respectively :

Select an option to see the answer, or skip this question.
Question 4 of 5
CBSE Past Year 2026

A plano-convex lens, made of glass (n = 1·5) has a curved surface whose radius is 40 cm. The image formed of an object is of the same size as that of the object. The distance of the object from the lens is :

Select an option to see the answer, or skip this question.
Question 5 of 5
CBSE Past Year 2026

In which of the following, total internal reflection does not occur?

Select an option to see the answer, or skip this question.
Stuck? Keep your progress moving.

Frequently asked questions

Who is this Chapter 9 - Ray Optics and Optical Instruments quiz for?

This CBSE Past Year MCQ Quiz covers Chapter 9 - Ray Optics and Optical Instruments for Class 12 · Physics · CBSE. Practise the questions in the interactive quiz and check your answers.

Is this quiz free?

Yes. This online quiz is free to attempt. Teachoo Black is not required to take the quiz.

How many questions will I get?

The current selection contains 5 questions. The questions and count can vary with the available question bank and grouped questions.

Can I check my answers and score?

Yes. In quiz mode, check your answer to receive feedback. Submit the quiz to review your score and answers. Full Teachoo solution links are shown where available.

Will I get the same questions when I retry?

Questions can change between attempts. Teachoo uses your previous practice when available to prioritise new questions and revision; a completely new set is not guaranteed.

Practice · Chapter 9 - Ray Optics and Optical Instruments