Physic : Sound MCQ Set-6

Set-6 1. 1 bel is equal to a. 100 dB b. 50dB c. 10dB d. 20dB 2. When we hear a sound, we can identify its source from a. wave length of sound b. the overtones present in the sound c. the intensity of sound d. the amplitude of sound 3. The velocity of sound in a gas deoends …

Physic : Sound MCQ Set-5

Set-5 1. Which of the following will remain unchanged when a sound wave travels in air or in water? a. Amplitude b. Wavelength c. Frequency d. Speed 2. The speed of sound in liquid is a. 2 times that in gas b. 3 times that in gas c. 5 times that in gas d. 8 …

Physic : Sound MCQ Set-4

Set-4 1. Distance between two consecutive compressions and rarefactions is termed as a. Frequency b. Amplitude c. Wavelength d. wave point 2. Intensities are scaled by factors of a. 20 b. 100 c. 10 d. 1000 3. Least audible sound for most of the human ear is : a. 0.0002 p bar b. 10.0 p …

Physic : Sound MCQ Set-3

Set-3 1. The speed of sound in medium depends upon a. amplitude b. frequency c. wavelength d. properties of the medium 2. Stethoscopes operate on the transmission of a. electricity b. signals c. light d. sound 3. Which one of the following animals can hear ultrasonic sound? a. Squirrel b. Bat c. Rat d. Cat …

Physic : Sound MCQ Set-2

Set-2 1. A safe level of noise depends on a. level of noise and exposure to noise b. area c. pitch d. frequency 2. We can “see” sound waves by using a. stethoscope b. microscope c. fiberscope d. oscilloscope 3. The sound produced by a bat is- a. audible b. infrasonic c. ultrasonic d. subsonic …