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Waves

Madhya Pradesh Board · Class 11 · Physics

Flashcards for Waves — Madhya Pradesh Board Class 11 Physics. Quick Q&A cards covering key concepts, definitions, and formulas.

131 questions60 flashcards5 concepts

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60 Flashcards
Card 1Introduction to waves

State the meaning of a wave in simple terms.

Answer

A wave is a moving disturbance that transfers energy from one point to another without the actual physical transfer of matter as a whole.

Card 2तरंगों का परिचय

सरल शब्दों में तरंग का अर्थ बताइए।

Answer

तरंग एक चलती हुई विक्षोभ है, जो पदार्थ के पूरे रूप में वास्तविक भौतिक स्थानांतरण के बिना एक बिंदु से दूसरे बिंदु तक ऊर्जा का स्थानांतरण करती है।

Card 3तरंगों का परिचय

तालाब में जल तरंगें पूरे जल के बाहर की ओर बहने जैसी क्यों नहीं होतीं?

Answer

विक्षोभ बाहर की ओर बढ़ता है, लेकिन जल के कण मुख्यतः अपनी माध्य स्थितियों के बारे में ऊपर और नीचे गति करते हैं। इससे पता चलता है कि ऊर्जा आगे बढ़ती है, न कि जल का द्रव्यमान पूरे रूप में।

Card 4Introduction to waves

Why are water waves on a pond not the same as water flowing outward as a whole?

Answer

The disturbance moves outward, but the water particles mainly move up and down about their mean positions. This shows that energy moves forward, not the water mass as a whole.

Card 5Speed of wave on string

A string wave has tension 60 N and linear mass density 6.9 × 10^-3 kg m^-1. Find the wave speed.

Answer

Given: T = 60 N, μ = 6.9 × 10^-3 kg m^-1 Formula: v = √(T/μ) Step 1: T/μ = 60 / (6.9 × 10^-3) = 8.70 × 10^3 m^2 s^-2 Step 2: v = √(8.70 × 10^3) m s^-1 Step 3: v ≈ 93 m s^-1 Answer: 93 m s^-1

Card 6डोरी पर तरंग की चाल

एक डोरी तरंग में तनाव 60 N है और रैखिक द्रव्यमान घनत्व 6.9 × 10^-3 kg m^-1 है। तरंग की चाल ज्ञात कीजिए।

Answer

दिया है: T = 60 N, μ = 6.9 × 10^-3 kg m^-1 सूत्र: v = √(T/μ) चरण 1: T/μ = 60 / (6.9 × 10^-3) = 8.70 × 10^3 m^2 s^-2 चरण 2: v = √(8.70 × 10^3) m s^-1 चरण 3: v ≈ 93 m s^-1 उत्तर: 93 m s^-1

Card 7तरंग समीकरण

धनात्मक x दिशा में चलने वाली साइनसॉइडल प्रगामी तरंग का सूत्र लिखिए।

Answer

y(x,t) = a sin(kx - ωt + φ) यहाँ a आयाम है, k कोणीय तरंग संख्या है, ω कोणीय आवृत्ति है, φ प्रारंभिक कलान्तर है, x स्थिति है, और t समय है।

Card 8Wave equation

State the formula for a sinusoidal travelling wave moving in the positive x direction.

Answer

y(x,t) = a sin(kx - ωt + φ) Here a is amplitude, k is angular wave number, ω is angular frequency, φ is initial phase angle, x is position, and t is time.

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Frequently Asked Questions

What are the important topics in Waves for Madhya Pradesh Board Class 11 Physics?
Waves covers several key topics that are frequently asked in Madhya Pradesh Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Waves — Madhya Pradesh Board Class 11 Physics?
Understand the core concepts first, then work through the 131 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
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