A) 0.10
B) 0.5
C) 1
D) 2
A) Echo
B) Reverberation
C) Both A and B
D) None of the above
A) Waves
B) Vibrations
C) Sound
D) All of the above
A) Decreases 2 times
B) Decreases variably
C) Remains same
A) Decreases the sound delivered to audience
B) Increase the sound delivered to the audience
C) The sound shall remain same
D) Case cannot be determined
A) Reflect sound
B) Focus the sound
C) Absorbs the sound
D) Disperse the sound
A) Absorption of sound
B) Reflection of Sound
C) Focusing the sound
D) Dispersing the sound
A) Flat
B) Porous
C) Jagged
D) Parabolic surfaces
A) 80dB
B) 120 dB
C) 140 dB
D) 148 dB
A) 2Hz
B) 20Hz
C) 200 Hz
A) 2000 Hz
B) 200000 Hz
C) 20000Hz
D) 20000000Hz
A) One
B) Two
C) Three
D) None
A) Infrasonic
B) Audible
C) Ultrasonic
D) Hypersonic
A) 20kHz
B) 45kHz
C) 60 kHz
D) 64kHzv
A) 20 kHz
B) 45 kHz
D) 64kHz
A) Elephants
B) Rhinos
C) Whales
C) Supersonic
D) Ultrasonic
A) 10
B)20
C)30
D) 40
A) Absorbed
B) Transmitted
C) Refracted
D) Reflected