Refraction through a lens — Important Questions
ICSE · Class 10 · Physics
42 important questions from Refraction through a lens for ICSE Class 10 Physics, with answers. Includes multiple choice and multiple correct questions.
Interactive on Super Tutor
Studying Refraction through a lens? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
Free trial, no card needed.
One of 22 illustrations for Refraction through a lens in Super Tutor — alongside flashcards, concept maps and practice questions.
See them allImportant Questions from Refraction through a lens
Which of the following are characteristics of a concave lens? (Select all correct answers)
Show answer
Diverging in nature, Negative focal length, Forms only virtual images
A concave lens diverges light rays, has a negative focal length, and always forms virtual, erect, and diminished images regardless of object position.
A concave lens always forms which type of image?
Show answer
Virtual, erect and diminished
A concave lens always forms a virtual, erect, and diminished image regardless of the position of the object. This is because concave lenses diverge light rays.
Which of the following statements about magnification are correct? (Select all correct answers)
Show answer
Magnification = v/u, Negative magnification indicates inverted image, If m > 1, image is enlarged
Magnification m = v/u = height of image/height of object. It is dimensionless. Negative m indicates inverted image, positive m indicates erect image. m > 1 means enlarged image.
The lens formula is:
Show answer
1/f = 1/v - 1/u
The lens formula relates focal length (f), object distance (u), and image distance (v). It is derived from geometry and applies to both convex and concave lenses.
+38 more questions on Refraction through a lens (ICSE Class 10 Physics)
Practise AllFrequently Asked Questions
What are the important topics in Refraction through a lens for ICSE Class 10 Physics?
How many important questions are there in Refraction through a lens?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Refraction through a lens
For serious students
Get the full Refraction through a lens chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 10 Physics. Free to start, no card needed.