Waves

9 solved questions from Class 11 Physics, each with the full working. Tap any question to see the step-by-step solution.

• 1 What is the fundamental law or governing principle of 'Waves' in Class 11 Physics? medium MCQ Fundamental Physical Law
• 2 What is the SI unit and dimensional formula for the key physical quantity studied in 'Waves'? medium MCQ SI Units & Dimensional Analysis
• 3 How does the field or potential intensity vary with distance r in 'Waves'? medium MCQ Spatial Distance Dependence
• 4 What is the net flux or circulation integral through a closed surface in 'Waves'? medium MCQ Gauss's Theorem & Boundary Integrals
• 5 Why do field lines in 'Waves' never intersect each other? medium MCQ Field Line Properties
• 6 Which of the following is NOT a characteristic of a simple harmonic wave? (a) Its displacement varies sinusoidally with time, (b) Its energy is conserved in a lossless medium, (c) It has a constant phase velocity, (d) Its wavefronts are always circular. easy MCQ 2 marks Identifying SH wave features
• 7 In a standing wave formed on a stretched string, the distance between two adjacent nodes is 0.25 m. If the frequency of the wave is 10 Hz, determine the speed of the waves on the string. medium 2 marks Speed of standing wave
• 8 A sound wave of frequency 400 Hz propagates in air. The speed of sound in air is 340 m/s. What is the wavelength of the wave? easy 1 mark Wave wavelength calculation
• 9 A horizontal string of linear density 0.02 kg/m is stretched with a tension of 120 N. A transverse sinusoidal disturbance of amplitude 5 mm and angular frequency 80 rad/s travels along the string. Calculate (a) the speed of the wave, (b) the wavelength, and (c) the maximum transverse force exerted by the wave at a point on the string. hard 5 marks Wave properties on a string