12. "The volume of a fixed mass of gas is inversely proportional to the pressure, provided the temperature remains constant" is 1 the statement of? d. Boyle's law - Boyle's law describes the relationship between pressure and volume of a gas at constant temperature 14. _______ may be defined as spontaneous disintegration of the nucleus of atoms. c. Radioactivity - Radioactivity is the spontaneous emission of particles or energy from the nucleus of an atom.
Given that velocity of sound is 340m/sec, the minimum distance between the listener and the obstacle in order to hear the echo of sound must be? correct answer To hear an echo, the sound wave must travel to the obstacle and back to the listener. For a clear echo, the time taken for the sound to travel to the obstacle and back should be at least 0.1 seconds. Calculation: Distance traveled by sound in 0.1 seconds: Distance = Velocity × Time Distance = 340 m/s × 0.1 s Distance = 34 meters This 34 meters is the total distance traveled by the sound wave (to the obstacle and back). Therefore, the minimum distance between the listener and the obstacle is 34 meters / 2 = 17 meters.
12. "The volume of a fixed mass of gas is inversely proportional to the pressure, provided the temperature remains constant" is 1 the statement of?
d. Boyle's law - Boyle's law describes the relationship between pressure and volume of a gas at constant temperature
14. _______ may be defined as spontaneous disintegration of the nucleus of atoms.
c. Radioactivity - Radioactivity is the spontaneous emission of particles or energy from the nucleus of an atom.
Given that velocity of sound is 340m/sec, the minimum distance between the listener and the obstacle in order to hear the echo of sound must be?
correct answer
To hear an echo, the sound wave must travel to the obstacle and back to the listener.
For a clear echo, the time taken for the sound to travel to the obstacle and back should be at least 0.1 seconds.
Calculation:
Distance traveled by sound in 0.1 seconds:
Distance = Velocity × Time
Distance = 340 m/s × 0.1 s
Distance = 34 meters
This 34 meters is the total distance traveled by the sound wave (to the obstacle and back).
Therefore, the minimum distance between the listener and the obstacle is 34 meters / 2 = 17 meters.
Thanks Dear sir for solving it 😇
14 question wrong key it should be
radioactivity
Sir thank you so much ❤
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