Passing through a slit (Activity - Page 25, 26)

Last updated at July 27, 2026 by

[Lines and Angles] Passing through a slit (Activity - Page 25, 26) - Activities with Angles

part 2 - Passing through a slit (Activity - Page 25, 26) - Activities with Angles - Chapter 2 Class 6 - Lines And Angles (Ganita Prakash) - Class 6 (Ganita Prakash & Old NCERT)

Remove Ads

Transcript

Passing through a slit (Activity - Page 25, 26)Cut an angle-shaped slit on a piece of cardboard (a fixed opening like ∠XOY). Then: Try inserting different rotating arms through the slit without changing the angle. Only the rotating arm that matches the slit angle will fit. What This Proves: It’s not the length of the arms that matters. It’s the amount of rotation (i.e., the angle) that determines whether it passes through. This helps correct the common misconception: “Longer rays = bigger angle” (which is wrong).

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.