Science GK Mock Test (Physics - Light Set 1) with explanation in English, Bengali, Hindi and Nepali

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Physics Light Chapter MCQ Mock Test Set 1 — এই পেজে Physics-এর Light Chapter (Lens & Mirror) বিষয়ক 20টি MCQ প্রশ্ন নিয়ে একটি Mock Test তৈরি করা হয়েছে। প্রতিটি প্রশ্নের বিস্তারিত ব্যাখ্যা English, Bengali (বাংলা), Hindi ও Nepali ভাষায় দেওয়া হয়েছে। এই Science GK Mock Test বিশেষভাবে SSC CGL, SSC CHSL, SSC MTS, WBP Constable, KP Exam, RRB Group D ও RRB NTPC পরীক্ষার্থীদের জন্য উপযোগী। Concave Mirror, Convex Mirror, Refraction, Refractive Index, Myopia, Hypermetropia, Tyndall Effect সহ Light Chapter-এর সমস্ত গুরুত্বপূর্ণ Topic Cover করা হয়েছে।

Physics Mock Test

Light — Lens & Mirror · 20 Questions · 12 Min

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📌 Topics Covered in This Mock Test

This Physics Light Chapter MCQ covers: Reflection of Light, Concave Mirror, Convex Mirror, Mirror Formula (1/v + 1/u = 1/f), Focal Length & Radius of Curvature (f = R/2), Refraction of Light, Snell's Law, Refractive Index, Concave Lens, Convex Lens, Lens Formula (1/v − 1/u = 1/f), Power of Lens (Dioptre), Myopia & Concave Lens Correction, Hypermetropia & Convex Lens Correction, Magnification, Total Internal Reflection, Optical Fibre, Object at Focus of Convex Lens (image at infinity), Tyndall Effect and Blue Sky.

🎯 Useful For These Exams

SSC CGL SSC CHSL SSC MTS WBP Constable KP Exam RRB Group D RRB NTPC WBCS Class 10 CBSE Class 10 ICSE IELTS Science

📚 Also Practice

All Science GK Mock Tests Science GK Question and Answer (Bengali) GK Mock Test (Micro Set) Math Mock Test Series WBP & KP English Mock Test Complete Mock Test Series

❓ Frequently Asked Questions

Q: Which mirror is used as rear-view mirror in vehicles?
A: Convex mirror is used as a rear-view mirror because it always forms a virtual, erect, and diminished image, giving the driver a wider field of view.

Q: What is the SI unit of power of a lens?
A: The SI unit of power of a lens is Dioptre (D). Power = 1/focal length (in metres).

Q: What lens corrects myopia?
A: A concave (diverging) lens is used to correct myopia (short-sightedness).

Q: Why does the sky look blue?
A: The sky appears blue due to the Tyndall effect — blue light (shortest wavelength) is scattered more by atmospheric particles than other colours.

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