Practice question

MCQ

Question

Which ray will take more time to reach the focus point? [Image: https://www.selfstudys.com/uploads/external-images/FG9y7PkKsoU0xZSBiHDDQPlLI61MujUGxaqT4YrQ.png]

Choose one · Correct answer highlighted

Ray A Ray B Both will take equal time Correct Can't say

Marginal rays take longer due to spherical aberration, central rays faster.

Share this question

Discussion

0 comments

Please log in to join the discussion.

No comments yet. Be the first to start the discussion.

Guides and insights connected to this topic

Class X Science 13 Sep 2026

Explore Class 10 notes on sustainable management of natural resources, covering the 5Rs, stakeholder roles, dams, water harvesting and fossil fuels.

NCERT 12 Zoology 06 Sep 2026

Overview of common diseases, immune system basics, AIDS, cancer, drug effects and health considerations for adolescents.

Botany 06 Sep 2026

Study transport in plants, covering diffusion, water potential, osmosis, transpiration, mineral uptake, and phloem transport mechanisms.