Samacheer Kalvi Class 10 Science Acoustics Questions & Answers - 1
Question: 1
Sound energy passing per second through a unit area held perpendicular is called
(A) frequency
(B) amplitude
(C) quality
(D) intensity
Ans: D
intensity
Question: 3
What is the frequency range of audio sound?
(A) 1.5 Hz to 20 kHz
(B) 10 Hz to 15 kHz
(C) 20 Hz to 25 kHz
(D) 20 Hz to 20 kHz
Ans: D
20 Hz to 20 kHz
Question: 4
Sound travels with a velocity of ___ air.
(A) 330 ms-1
(B) 331 ms-1
(C) 332 ms-1
(D) 336 ms-1
Ans: C
332 ms-1
Question: 5
The speed of sound in air is 300 m/s. what is the frequency as heard by the human ear?
(A) 1 Hz
(B) 10,000 Hz
(C) 1,00,000 Hz
(D) 0.001 Hz
Ans: B
10,000 Hz
Question: 6
The frequency, which is audible to the human ear is
(A) 20 kHz
(B) 50 kHz
(C) 15000 kHz
(D) 10000 kHz
Ans: A
20 kHz
Question: 7
Sound waves in air are
(A) longitudinal
(B) transverse
(C) both a and b
(D) none of these
Ans: A
longitudinal
Question: 8
Distance between two consecutive compression is ___
(A) λ
(B) $${λ}/{2}$$
(C) $${λ}/{4}$$
(D) 2λ
Ans: A
λ
Question: 9
When a sound wave travels through air, the air particles
(A) do not vibrate
(B) vibrate perpendicular to the direction of the wave motion
(C) vibrate but not in any fixed direction
(D) vibrate along the direction of the wave motion
Ans: D
vibrate along the direction of the wave motion
Question: 10
The region of a sound wave having low pressure is
(A) compression
(B) rarefaction
(C) refraction
(D) interference
Ans: B
rarefaction
Agricultural Structural and Environmental Control MCQ Quiz More
Science Solutions Class 10 Important Questions and Answers More
Science Solutions Class 10 Important Questions and Answers More
Samacheer Kalvi 10th Science Solutions Questions & Answers More
Samacheer Kalvi 10th Science Carbon and Its Compounds Questions More
1000+ General Knowledge Quiz for Bank Clerk Exam More
1000+ Puzzle Questions for Bank Exams with Answers Pdf More
1000+ Puzzles Questions More
Soil, Water Conservation Engineering, Hydrology, Surveying MCQ Questions More
Online General Knowledge Quiz with Answers More