EASY
11th ICSE
IMPORTANT
Earn 100

What do you mean by 'intensity' of a wave? Write its unit. What is the relation between intensity of wave and amplitude of motion of the medium particles?

Important Questions on Progressive Harmonic Waves

EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 28 - Progressive Harmonic Waves>NUMERICALS>Q 1
The frequency of a radio transmission centre is 30 MHz. Find out the wavelength of the waves transmitted from the station.
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 28 - Progressive Harmonic Waves>NUMERICALS>Q 2
Ripples are being generated by a vibrator on the surface of the water. The distance between two consecutive crests is 3 cm. Ripples cover a distance of 25.2 cm in 1.2 s. Calculate the wavelength, wave velocity and the frequency of the generated waves.
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 28 - Progressive Harmonic Waves>NUMERICALS>Q 3
A wave of frequency 250 Hz travels with a speed of 4800 ms-1 in iron. What will be its wavelength in iron ?
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 28 - Progressive Harmonic Waves>NUMERICALS>Q 3
A wave of frequency 250 Hz travels with a speed of 4800 ms-1 in iron. What will be its wavelength in air if its speed in air is 332 ms-1?
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 28 - Progressive Harmonic Waves>NUMERICALS>Q 4
The wavelength of a wave in a medium is 0.5 m. The phase difference between the oscillations produced at two points in the medium due to this wave is π5. Calculate the minimum distance between these two points.
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 28 - Progressive Harmonic Waves>NUMERICALS>Q 5
The phase difference between the vibrations of two particles in a medium is π3. Find the wavelength of the wave if the distance between the particles is 10 cm.
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 28 - Progressive Harmonic Waves>NUMERICALS>Q 6
The speed of a wave in a string is 20 m s-1 and its frequency is 50 s-1. Calculate the phase difference in radian between two points situated at a distance of 10 cm on the string.
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 28 - Progressive Harmonic Waves>NUMERICALS>Q 7
The frequency of a wave propagating in a string is 20 Hz. What will be the difference in the phase of a particle of the string in a time interval of 0.01 s ?