10th Physics Chapter 2: Sound

Sr #	Questions	A	B	C	D
1	What does the intensity of a sound wave measure?	The frequency of the sound wave	The amplitude of the sound wave	The energy transmitted per unit area by the sound wave	The pitch of the sound wave
2	Which of the following conditions is necessary for the formation of an echo?	The surface must be rough	The surface must be smooth	The distance between the source and the reflecting surface must be small	The distance between the source and the reflecting surface must be large
3	The distinctive characteristics of a sound wave that enable the ear to distinguish between different instruments or voices are referred to as:	Vibrational amplitude	Surface area	Sensitivity	Quality
4	Which of the following is the fastest medium for the propagation of sound?	Air	Water	Steel	Vacuum
5	The size of the vibrating surface of a sound source affects the:	Loudness	Pitch	Amplitude	Wavelength
6	What is the nature of sound waves?	Transverse	Electromagnetic	Longitudinal	Surface
7	What factors affect the propagation speed of sound in a medium?	Temperature and humidity	Amplitude and frequency	Mass and volume	Wavelength and intensity
8	Which unit is used to measure sound intensity level?	Decibel (dB)	Hertz (Hz)	Newton (N)	Pascal (Pa)
9	Sound that interferes with desired sounds and disrupts communication or other activities is referred to as:	Echo	Noise	Vibration	Resonance
10	What is the distance between two consecutive compressions or rarefactions in a sound wave called?	Amplitude	Wavelength	Frequency	Time period
11	Which of the following is an application of echo?	Sonar	MRI	X-ray	ECG
12	The ability of the ear to detect small variations in sound intensity is referred to as:	Vibrational amplitude	Surface area	Sensitivity	Quality
13	In which medium does sound travel the fastest?	Solid	Liquid	Gas	Vacuum
14	What type of sound waves are produced by tuning forks?	Longitudinal waves	Transverse waves	Surface waves	Electromagnetic waves
15	The speed of sound generally increases with:	Decreasing temperature	Increasing temperature	Decreasing humidity	Increasing humidity
16	The number of vibrations per second is known as:	Wavelength	Amplitude	Frequency	Time period
17	What causes the sound of thunder during a lightning storm?	Light waves	Heat waves	Sound waves	Pressure waves
18	Which type of sound wave requires a medium for propagation?	Electromagnetic waves	Mechanical waves	Transverse waves	Surface waves
19	The subjective impression of the intensity of a sound wave is referred to as its:	Pitch	Loudness	Amplitude	Quality
20	The measure of the maximum displacement of particles in the source of a sound wave is called:	Vibrational amplitude	Surface area	Sensitivity	Quality
21	The time taken for one complete vibration is called:	Wavelength	Amplitude	Frequency	Time period
22	Which term refers to the maximum displacement of particles from their mean position in a sound wave?	Wavelength	Amplitude	Frequency	Time period
23	Why is acoustic protection important?	To increase noise levels in the environment	To prevent hearing loss and other health issues caused by excessive noise exposure	To enhance communication in crowded places	To create a peaceful environment for meditation
24	Which graph would best represent the comparative sketch of the loudness and pitch of sound waves?	Graph A: Loudness vs. Time	Graph B: Loudness vs. Wavelength	Graph C: Pitch vs. Time	Graph D: Pitch vs. Amplitude
25	What is the phenomenon of sound reflection that occurs when sound waves bounce off a surface?	Refraction	Diffraction	Interference	Echo
26	What is the source of sound waves?	Light	Heat	Vibrating objects	Electromagnetic waves
27	How is sound produced?	By the movement of air molecules	By the movement of light waves	By the movement of electromagnetic waves	By the movement of water molecules
28	The subjective impression of the frequency of a sound wave is referred to as its:	Pitch	Loudness	Amplitude	Quality
29	The resistance of a medium to flow affects the speed of sound due to its:	Density	Elasticity	Viscosity	Temperature
30	What dynamic condition of a medium affects the speed of sound?	Density	Elasticity	Viscosity	Transparency
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