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 MCQ Test

CBSE Past Year MCQ Quiz

Preparing for CBSE

Class leaderboard →

Chapter 9 - Ray Optics and Optical Instruments | 5 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 480
Question 1 of 5
Advertisement
Question 1 of 5
CBSE Past Year 2026

A ray of monochromatic light travelling in air is incident on a glass slab and is partly reflected and partly refracted. Both the reflected and refracted lights will have :

Select one option. Answers are shown after the test.
Question 2 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 one option. Answers are shown after the test.
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 one option. Answers are shown after the test.
Question 4 of 5
CBSE Past Year 2026

A concave lens of focal length 10 cm is cut into two identical plano-concave lenses. The focal length of each lens will be

Select one option. Answers are shown after the test.
Question 5 of 5
CBSE Past Year 2026

An equiconvex lens of focal length 15 cm is cut into two equal plano-convex halves. The focal length of each half will be :

Select one option. Answers are shown after the test.