Velocity of sound in air does not depend on (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air

Velocity of sound in air does not depend on (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air
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 Pressure of air
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Velocity of sound in air does not depend on – (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air

Description : Velocity of sound in air does not depend on – (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air

Last Answer : (3) Pressure of air Explanation: Assuming air to be an ideal gas, the speed of sound depends on temperature only. As air temperature increases, so does the speed of sound and vice versa. ... air pressure because the air pressure and air density are proportional to each other at the same temperature.

Which one among the following doesn't have any effect on velocity of sound? (1) Pressure (2) Temperature (3) Humidity (4) Density

Description : Which one among the following doesn't have any effect on velocity of sound? (1) Pressure (2) Temperature (3) Humidity (4) Density

Last Answer : (3) Humidity Explanation: The speed of sound varies depending on the temperature, pressure, and density of the medium through which the sound waves travel. In most of the cases, it is density ... (or other material). The density of air is affected by atmospheric pressure, temperature, and altitude.

Which one among the following doesn't have any effect on velocity of sound ? (1) Pressure (2) Temperature (3) Humidity (4) Density

Description : Which one among the following doesn't have any effect on velocity of sound ? (1) Pressure (2) Temperature (3) Humidity (4) Density

Last Answer : Humidity

The velocity of sound in air – (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature

Description : The velocity of sound in air – (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature

Last Answer : (4) decreases with decrease of temperature Explanation: Assuming air to be an ideal gas, the speed of sound c depends on temperature only, not on the pressure or density. As air ... to the individual air particles having extra kinetic energy at higher temperatures and lesser at lower temperatures.

The velocity of sound in air (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature

Description : The velocity of sound in air (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature

Last Answer :  decreases with decrease of temperature

Speed of sound in air is unaffected by change in : (1) Pressure (2) Humidity (3) Temperature (4) Volume

Description : Speed of sound in air is unaffected by change in : (1) Pressure (2) Humidity (3) Temperature (4) Volume

Last Answer : (1) Pressure Explanation: The speed of sound in air depends on the density of air and the density of air depends on the temperature. The speed of sound is unaffected by pressure. If the atmospheric pressure changes, the speed of sound in air remains constant.

Speed of sound in air is unaffected by change in : (1) Pressure (2) Humidity (3) Temperature (4) Volume

Description : Speed of sound in air is unaffected by change in : (1) Pressure (2) Humidity (3) Temperature (4) Volume

Last Answer : Pressure

The velocity of sound in air – (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature

Description : The velocity of sound in air – (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature

Last Answer : (4) decreases with decrease of temperature Explanation: Assuming air to be an ideal gas, the speed of sound c depends on temperature only, not on the pressure or density. As air ... to the individual air particles having extra kinetic energy at higher temperatures and lesser at lower temperatures.

The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than city air (2) less pressure than dry air (3) more pressure than dry air (4) more density than dry air

Description : The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than city air (2) less pressure than dry air (3) more pressure than dry air (4) more density than dry air

Last Answer : (1) less density than city air Explanation: The density of dry air is more than that of moist air (when moisture is removed from air, its density. increases). The speed of sound in a medium is inversely ... root of its density. Therefore, the speed of sound in moist air is more than that in dry air.

The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than dry air. (2) less pressure than dry air. (3) more pressure than dry air. (4) more density than dry air.

Description : The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than dry air. (2) less pressure than dry air. (3) more pressure than dry air. (4) more density than dry air. 

Last Answer : less density than dry air.

Evaporation losses depend upon (A) Area of the water surface and depth of the water (B) Nature of precipitation and type of vegetation (C) Humidity and wind velocity (D) All the above

Description : Evaporation losses depend upon (A) Area of the water surface and depth of the water (B) Nature of precipitation and type of vegetation (C) Humidity and wind velocity (D) All the above

Last Answer : Answer: Option D

Compressed air coming out from a punctured football  (a) becomes hotter  (b) becomes cooler1  (c) remains at the same temperature  (d) may become hotter or cooler depend-ing upon the humidity of the surround¬ing air  (e) attains atmospheric temperature.

Description : Compressed air coming out from a punctured football  (a) becomes hotter  (b) becomes cooler1  (c) remains at the same temperature  (d) may become hotter or cooler depend-ing upon the humidity of the surround¬ing air  (e) attains atmospheric temperature.

Last Answer : (b) becomes cooler1

Hydroscope is an instrument that shows changes in: (1) Sound under water (2) Atmospheric humidity (3) Density of liquid (4) None of these

Description : Hydroscope is an instrument that shows changes in: (1) Sound under water (2) Atmospheric humidity (3) Density of liquid (4) None of these

Last Answer : (4) None of these Explanation: Hydroscope is an optical device for enabling a person to see an object at a considerable distance below the surface of water by means of a series of mirrors ... usually converted to sound pressure level (SPL), a logarithmic measure of the mean square acoustic pressure.

Shell side pressure drop in a shell and tube heat exchanger does not depend upon the (A) Baffle spacing & shell diameter (B) Tube diameter & pitch (C) Viscosity, density & mass velocity of shell side fluid (D) None of these

Description : Shell side pressure drop in a shell and tube heat exchanger does not depend upon the (A) Baffle spacing & shell diameter (B) Tube diameter & pitch (C) Viscosity, density & mass velocity of shell side fluid (D) None of these

Last Answer : (D) None of these

Richter Scale is used for measuring : (1) Velocity of wind (2) Density of liquid (3) Intensity of earthquake (4) Humidity of air

Description : Richter Scale is used for measuring : (1) Velocity of wind (2) Density of liquid (3) Intensity of earthquake (4) Humidity of air

Last Answer : Intensity of earthquake

The temperature at which water boils depends mainly on ------? A. Air temperature B. Relative humidity C. Air pressure (Answer) D. Air density E. The specific heat of air

Description : The temperature at which water boils depends mainly on ------? A. Air temperature B. Relative humidity C. Air pressure (Answer) D. Air density E. The specific heat of air

Last Answer : C. Air pressure (Answer)

Hygrometer is used for measuring the ------? A. Speed of sound B. Density of milk C. Humidity of air (Answer) D. Specific gravity of liquids E. None of these

Description : Hygrometer is used for measuring the ------? A. Speed of sound B. Density of milk C. Humidity of air (Answer) D. Specific gravity of liquids E. None of these

Last Answer : C. Humidity of air (Answer)

Velocity of sound in air does not change with the change of – (1) Temperature of air (2) Pressure of air (3) Moisture content in air (4) Wind in the direction of propagation of sound

Description : Velocity of sound in air does not change with the change of – (1) Temperature of air (2) Pressure of air (3) Moisture content in air (4) Wind in the direction of propagation of sound

Last Answer : (2) Pressure of air Explanation: The speed of sound in an ideal gas is independent of frequency, but it weakly depends on frequency for all real physical situations. It is a function of the ... ideal gas. Sound speed is slightly dependent on pressure only because air is not quite an ideal gas.

Velocity of sound in air does not change with the change of (1) Temperature of air (2) Pressure of air (3) Moisture content in air (4) Wind in the direction of propagation of sound

Description : Velocity of sound in air does not change with the change of (1) Temperature of air (2) Pressure of air (3) Moisture content in air (4) Wind in the direction of propagation of sound

Last Answer : Pressure of air

Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity

Description : Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity

Last Answer : (1) Due to low air pressure Explanation: Low air pressure is usually the most significant limiting factor in high mountain regions. The percentage of oxygen in the air at 3.2 km is ... high altitudes, the lower air pressure makes it more difficult for oxygen to enter our vascular systems.

Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity

Description : Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity

Last Answer : Due to low air pressure

The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than city air (2) less pressure than dry air (3) more pressure than dry air (4) more density than dry air

Description : The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than city air (2) less pressure than dry air (3) more pressure than dry air (4) more density than dry air

Last Answer : (1) less density than city air Explanation: The density of dry air is more than that of moist air (when moisture is removed from air, its density. increases). The speed of sound in a medium is inversely ... root of its density. Therefore, the speed of sound in moist air is more than that in dry air.

The amount of heat required to change a boiling liquid to a gas at the same temperature depends on one of the following properties of the liquid. Does it depend on the liquid's: w) heat of fusion x) heat of vaporization y) temperature z) density

Description : The amount of heat required to change a boiling liquid to a gas at the same temperature depends on one of the following properties of the liquid. Does it depend on the liquid's: w) heat of fusion x) heat of vaporization y) temperature z) density

Last Answer : ANSWER: X -- HEAT OF VAPORIZATION

The cooling effect in a cooling tower cannot be increased by (A) Increasing the air velocity over the wet surfaces (B) Reducing the humidity of entering air (C) Lowering the barometric pressure (D) None of these

Description : The cooling effect in a cooling tower cannot be increased by (A) Increasing the air velocity over the wet surfaces (B) Reducing the humidity of entering air (C) Lowering the barometric pressure (D) None of these

Last Answer : (D) None of these

The cooling effect in a cooling tower can be speeded up by (A) Increasing the air velocity and area of exposed wet surface (B) Reducing the barometric pressure (C) Reducing the humidity of the air (D) All (A), (B) and (C)

Description : The cooling effect in a cooling tower can be speeded up by (A) Increasing the air velocity and area of exposed wet surface (B) Reducing the barometric pressure (C) Reducing the humidity of the air (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

The frictional resistance in laminar flow does not depend on the (A) Area of surface in contact (B) Flow velocity (C) Fluid temperature (D) Pressure of flow

Description : The frictional resistance in laminar flow does not depend on the (A) Area of surface in contact (B) Flow velocity (C) Fluid temperature (D) Pressure of flow

Last Answer : (A) Area of surface in contact

Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant (A) Humidity (B) Velocity (C) Temperature (D) All (A), (B) & (C)

Description : Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant (A) Humidity (B) Velocity (C) Temperature (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Evaporation from water surfaces exposed to air is not dependent of the: w) velocity of the wind x) humidity y) temperature z) depth of the water

Description : Evaporation from water surfaces exposed to air is not dependent of the: w) velocity of the wind x) humidity y) temperature z) depth of the water 

Last Answer : ANSWER: Z -- DEPTH OF THE WATER 

What is the major cause of 'October Heat'? (1) Hot and dry weather (2) Very low velocity winds (3) Low pressure systems over the IndoGangetic plains (4) High temperature associated with high humidity

Description : What is the major cause of 'October Heat'? (1) Hot and dry weather (2) Very low velocity winds (3) Low pressure systems over the IndoGangetic plains (4) High temperature associated with high humidity

Last Answer : (4) High temperature associated with high humidity Explanation: The months of OctoberNovember mark a period of transition from hot rainy season to cold dry winter conditions. This period is ... temperature and high humidity, weather becomes oppressive. This phenomenon is known as 'October heat.

Drag force acting on a body does not depend upon the (A) Density of the fluid (B) Density of the body (C) Velocity of the body (D) Projected area of the body

Description : Drag force acting on a body does not depend upon the (A) Density of the fluid (B) Density of the body (C) Velocity of the body (D) Projected area of the body

Last Answer : (B) Density of the body

Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the (A) Length of the pipe (B) Diameter of the pipe (C) Density of the fluid (D) Velocity of the fluid

Description : Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the (A) Length of the pipe (B) Diameter of the pipe (C) Density of the fluid (D) Velocity of the fluid

Last Answer : (A) Length of the pipe

Thermocouples are used for the measurement of (A) humidity. (B) pressure. (C) temperature. (D) density.

Description : Thermocouples are used for the measurement of (A) humidity. (B) pressure. (C) temperature. (D) density.

Last Answer : (C) temperature.

The clouds float in the atmosphere because of their low: (1) temperature (2) velocity (3) pressure (4) density

Description : The clouds float in the atmosphere because of their low: (1) temperature (2) velocity (3) pressure (4) density

Last Answer : (4) density Explanation: Clouds generally form, survive and grow in air that is moving upward. Rising air expands as the pressure on it decreases, and that expansion into thinner, high-altitude air causes cooling.

If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound? (1) 4 : 1 (2) 2 : 1 (3) 1 : 16 (4) 1 : 4

Description : If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound? (1) 4 : 1 (2) 2 : 1 (3) 1 : 16 (4) 1 : 4

Last Answer : (4) 1 : 4

Velocity of sound waves through any material depends on A. the material's density ‘d’ only B. the material's density ‘d’ as well as its modulus of elasticity ‘E’ C. the material's modulus of elasticity ‘E’ only D. neither the material's density ‘d’ nor its modulus of elasticity ‘E’

Description : Velocity of sound waves through any material depends on A. the material's density ‘d’ only B. the material's density ‘d’ as well as its modulus of elasticity ‘E’ C. the material's modulus of elasticity ‘E’ only D. neither the material's density ‘d’ nor its modulus of elasticity ‘E’

Last Answer : the material's density ‘d’ as well as its modulus of elasticity ‘E’

If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound? (1) 4 : 1 (2) 2 : 1 (3) 1 : 16 (4) 1 : 4

Description : If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound? (1) 4 : 1 (2) 2 : 1 (3) 1 : 16 (4) 1 : 4

Last Answer :  1 : 4

Equilibrium-moisture curves of different solids (A) Are different (B) Are same (C) Depend on the humidity of the gas (D) None of these

Description : Equilibrium-moisture curves of different solids (A) Are different (B) Are same (C) Depend on the humidity of the gas (D) None of these

Last Answer : (A) Are different

The moment of inertia of a body does not depend upon its – (1) axis of rotation (2) angular velocity (3) form of mass (4) distribution of mass

Description : The moment of inertia of a body does not depend upon its – (1) axis of rotation (2) angular velocity (3) form of mass (4) distribution of mass

Last Answer : (2) angular velocity Explanation: Moment of inertia is the mass property of a rigid body that determines the torque needed for a desired angular acceleration about an axis of rotation. Moment of inertia ... of moments of inertia of the masses making up the whole object, under the same conditions.

The moment of inertia of a body does not depend upon its (1) axis of rotation (2) angular velocity (3) form of mass (4) distribution of mass

Description : The moment of inertia of a body does not depend upon its (1) axis of rotation (2) angular velocity (3) form of mass (4) distribution of mass

Last Answer : angular velocity

The colours of stars depend on their – (1) temperature (2) distance (3) radius (4) atmospheric pressure

Description : The colours of stars depend on their – (1) temperature (2) distance (3) radius (4) atmospheric pressure

Last Answer : (1) temperature Explanation: The colour of a star tells about its temperature, and the temperature depends on some combination of the star's mass and evolutionary phase.

The colours of stars depend on their (1) temperature (2) distance (3) radius (4) atmospheric pressure

Description : The colours of stars depend on their (1) temperature (2) distance (3) radius (4) atmospheric pressure

Last Answer : temperature

Resistance of a metal rod does not depend on which of the following ? 1) ... resistivity 2) density 3). Length 4), warmth ..... Explain it in a little details ?

Description : Resistance of a metal rod does not depend on which of the following ? 1) ... resistivity 2) density 3). Length 4), warmth ..... Explain it in a little details ?

Last Answer : Answer : On its density. Because it depends on how close or how far the atom must be seen.

0 কত What is the velocity of sound in charged air at normal temperature and normal pressure ?

Description : 0 কত What is the velocity of sound in charged air at normal temperature and normal pressure ?

Last Answer : At a temperature of 0 ° C and normal pressure, the speed of sound in the charged air is 332 m / s.

How does density and temperature affect the velocity of sound?

Description : How does density and temperature affect the velocity of sound?

Last Answer : Velocity increases as density decreases and temperature increases.

What does the speed of sound depend on ?

Description : What does the speed of sound depend on ?

Last Answer : The speed of sound depends on the density , nature , temperature and humidity of the medium. As the density and temperature increase, the speed of sound increases. For example, with an increase in ... . The velocity of sound through air is lowest and the velocity of sound through zero is zero.

A supercharger is used in the engines of earthmoving machines at higher altitudes because (a) The ambient atmospheric pressure is less at higher altitudes (b) Four-cycle engines depend on the suction of the engines for the supply of air (c) Two-cycle engines are not rugged enough for higher altitude (d) The ambient temperature is less as the altitude is higher

Description : A supercharger is used in the engines of earthmoving machines at higher altitudes because (a) The ambient atmospheric pressure is less at higher altitudes (b) Four-cycle engines depend on the suction ... rugged enough for higher altitude (d) The ambient temperature is less as the altitude is higher

Last Answer : (a) The ambient atmospheric pressure is less at higher altitudes

On which of the following does the capacity of a kilogram of air for holding water depend? w) the air pressure x) the air temperature y) the dust content of the air z) the ions in the air

Description : On which of the following does the capacity of a kilogram of air for holding water depend? w) the air pressure x) the air temperature y) the dust content of the air z) the ions in the air

Last Answer : ANSWER: X -- THE AIR TEMPERATURE 

Pick out the wrong statement: (A) Change in barometric pressure does not affect the relative humidity (B) In case of a packed tower, the operating velocity is about half of the flooding velocity, generally (C) 'Elution' means the desorption of the adsorbed solute by a solvent (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity

Description : Pick out the wrong statement: (A) Change in barometric pressure does not affect the relative humidity (B) In case of a packed tower, the operating velocity is about half of the ... (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity

Last Answer : (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity

What is A large body of air that has similar temperature humidity and air pressure at a given height is called?

Description : What is A large body of air that has similar temperature humidity and air pressure at a given height is called?

Last Answer : lollipop

What is a weather balloon device for measuring air pressure temperature and relative humidity is called?

Description : What is a weather balloon device for measuring air pressure temperature and relative humidity is called?

Last Answer : A+ Radiosonde