Question : Which one among the following doesn't have any effect on the velocity of sound?
Option 1: Pressure
Option 2: Temperature
Option 3: Humidity
Option 4: Density
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Correct Answer: Humidity
Solution : The correct option is Humidity.
While humidity can affect the speed of sound in the air to some extent, it has a negligible impact when compared to other parameters such as temperature, pressure, and density. Changes in humidity (the quantity of water vapour in the air) can marginally alter the speed of sound in gases such as air, although the effect is small in comparison to the large influence of temperature and pressure on sound velocity.
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Question : In the Earth's atmosphere, which of the following continuously decreases with height?
Option 1: Temperature
Option 2: Humidity
Option 3: Pressure
Option 4: Wind Velocity
Question : Cultivation of rice needs high rainfall with_____.
Option 1: low temperature and low humidity
Option 2: high temperature and low humidity
Option 3: high temperature and high humidity
Option 4: low temperature and high humidity
Question : The wind vane instrument measures the _______.
Option 1: relative humidity
Option 2: temperature
Option 3: wind velocity
Option 4: wind direction
Question : If the density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio to the velocity of sound?
Option 1: 4:1
Option 2: 2:1
Option 3: 1:16
Option 4: 1:4
Question : Which of the following is a characteristic of an exothermic reaction:
Option 1: Release of heat
Option 2: Absorption of heat
Option 3: Doesn't involve any change in temperature
Option 4: None of the options is correct
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