Waves
CBSE · Class 11 · Physics
Flashcards for Waves — CBSE Class 11 Physics. Quick Q&A cards covering key concepts, definitions, and formulas.
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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.
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।…
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।…
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.
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…
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…
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।…
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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- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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