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Physics Insights, Mohali (2026)

🚀 Physics Insights

Making Physics simple, visual & inspiring.

🔬 Physics • Science • STEM
📚 MCQs • Concepts • Exam Prep
🧠 Learn smarter, not harder
💡 Turning confusion into clarity

✨ Explore.

09/09/2026

🖤 Why Does Silver Turn Black? | The Science Behind It

✨ Ever wondered why your shiny silver jewellery slowly turns black? 🖤

It’s called tarnishing.

Silver reacts with tiny amounts of hydrogen sulfide (H₂S) in the air and forms silver sulfide (Ag₂S) — the black coating you see on the surface.
🔬 Shiny Silver → Silver Sulfide → Black Tarnish

Science is everywhere—even in your jewellery! 💡

Follow Physics Insights for more simple, interesting science concepts and MCQs. 📚

01/09/2026

🔍⚡ PHYSICS CHALLENGE #046 ⚡🔍

🪞 Ray Optics — Can You Answer?

📖 QUESTION

Centre of curvature of a convex mirror lies:

🅰️ Behind the mirror

🅱️ In front of the mirror

🅲️ At the surface of the mirror anywhere

🅳️ At infinity

🤔 Think carefully before choosing your answer!

👇 Comment your answer below.

🏆 Correct answer & detailed explanation will be revealed tomorrow.

📲 Challenge your friends! Share this post and see who gets it right.

📚 FOLLOW PHYSICS INSIGHTS for daily Physics MCQs, concepts & exam preparation.

24/08/2026

🔍⚡ PHYSICS CHALLENGE #045 ⚡🔍

👁️ Human Eye — Can You Answer?

📖 QUESTION

Myopia and hypermetropia can be corrected by:

🅰️ Concave and plano-convex lens

🅱️ Concave and convex lens

🅲️ Convex and concave lens

🅳️ Plano-concave lens for both defects

🤔 Think carefully before choosing your answer!

👇 Comment your answer below.

🏆 Correct answer & detailed explanation will be revealed tomorrow.

📲 Challenge your friends! Share this post and see who gets it right.

📚 FOLLOW PHYSICS INSIGHTS for daily Physics MCQs, concepts & exam preparation.

18/08/2026

🔍⚡ PHYSICS CHALLENGE #044 ⚡🔍

👁️ Human Eye — Can You Answer?

📖 Question

The defect of vision in which the eyeball is elongated is:

🅰️ Myopia

🅱️ Hypermetropia

🅲️ Presbyopia

🅳️ Cataract

🤔 Think carefully before choosing your answer!

👇 Comment your answer below.

🏆 Correct answer & detailed explanation will be revealed tomorrow.

📲 Challenge your friends too! Share this post and see who gets it right.

📚 FOLLOW PHYSICS INSIGHTS for daily Physics MCQs, concepts & exam preparation.

14/08/2026

🔍⚡ PHYSICS CHALLENGE #043 — ANSWER REVEAL! ⚡🔍

👁️ Human Eye — Let's Check Your Answer!

📖 QUESTION

Which of the following can be directly affected if the iris does not function properly?

🅰️ Identification of colours

🅱️ The amount of light entering the eye ✅

🅲️ Transmission of visual information to the brain

🅳️ Finer adjustments for focussing the objects

✅ CORRECT ANSWER: (B)

💡 EXPLANATION

The iris controls the size of the pupil.

It adjusts the pupil according to the intensity of light:

☀️ Bright light → pupil becomes smaller
🌙 Dim light → pupil becomes larger

Therefore, if the iris does not function properly, the amount of light entering the eye is directly affected.

📌 Remember:
Iris → Controls pupil size → Regulates light entering the eye

📲 Did you get it right?
Share this challenge with your friends and see who got the correct answer!

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13/08/2026

🔍⚡ PHYSICS CHALLENGE #043 ⚡🔍

👁️ Human Eye — Can You Answer?

📖 Question

Which of the following can be directly affected if the iris does not function properly?

🅰️ Identification of colours

🅱️ The amount of light entering the eye

🅲️ Transmission of visual information to the brain

🅳️ Finer adjustments for focussing the objects

🤔 Think carefully and comment your answer below!

🏆 Correct answer & detailed explanation will be revealed tomorrow.

📚 Follow PHYSICS INSIGHTS for daily Physics MCQs, concepts & exam preparation.

📲 Think your friends can solve it? Share this challenge with them and see who gets it right!

Address

Mohali

Opening Hours

9am - 5pm

Website

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