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Waves — Flashcards

CBSE · Class 11 · Physics

60 flashcards for Waves (CBSE Class 11 Physics) to test yourself on key terms and facts. Sample: "State the meaning of a wave in simple terms."

131 questions60 flashcards14 formulas & key relations5 concepts

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60 Flashcards·
Introduction to wavesतरंगों का परिचयSpeed of wave on stringडोरी पर तरंग की चालतरंग समीकरणWave equation
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 CBSE Class 11 Physics?
Key topics in Waves include Basic idea of waves and types of waves, Transverse and longitudinal waves, Sinusoidal travelling waves and wave parameters, Speed of a travelling wave. Study these first, then practise questions on each for Class 11 exams.
How many flashcards are available for Waves?
There are 60 flashcards for Waves covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Waves for Class 11 exams?
Learn the core ideas first, then work through the 131 practice questions on Waves. Revise definitions regularly and use flashcards for quick recall before the exam.

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