Hailstorms are caused due to – (1) condensation (2) convection (3) sublimation (4) freezing

Hailstorms are caused due to – (1) condensation (2) convection (3) sublimation (4) freezing
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(4) freezing Explanation: In a hailstorm, small ice particles that form above the freezing level (which occurs in all thunderstorms) collect either rain water or cloud water on them, forming a water shell that freezes. The tilted updraft and downdraft structure of the storm is important in order for hailstones to grow because they can be `recycled' several times, until they either become too large for the updraft to carry them, or they get caught in a downdraft, and they finally reach the ground.
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Hailstorms are caused due to (1) condensation (2) convection (3) sublimation (4) freezing

Description : Hailstorms are caused due to (1) condensation (2) convection (3) sublimation (4) freezing

Last Answer : freezing

The phenomenon of melting under pressure and freezing again when the pressure is reduced is known as  a. sublimation  b. condensation  c. deposition  d. regelation

Description : The phenomenon of melting under pressure and freezing again when the pressure is reduced is known as  a. sublimation  b. condensation  c. deposition  d. regelation

Last Answer : regelation

The change of a gas to a liquid is called: w) vaporization x) sublimation y) condensation z) freezing

Description : The change of a gas to a liquid is called: w) vaporization x) sublimation y) condensation z) freezing

Last Answer : ANSWER: Y -- CONDENSATION

Frontal Rain is caused by – (1) Convection current (2) Winds from sea (3) Cyclonic activity (4) Condensation of water evaporated from mountains

Description : Frontal Rain is caused by – (1) Convection current (2) Winds from sea (3) Cyclonic activity (4) Condensation of water evaporated from mountains

Last Answer : (3) Cyclonic activity Explanation: Frontal rainfall is a type of precipitation which occurs when a warm air mass and a cold air mass meet. Extra-tropical cyclones form as waves along ... is the development or strengthening of cyclonic circulation in the atmosphere (a low pressure area).

Frontal Rain is caused by (1) Convection current (2) Winds from sea (3) Cyclonic activity (4) Condensation of water evaporated from mountains

Description : Frontal Rain is caused by (1) Convection current (2) Winds from sea (3) Cyclonic activity (4) Condensation of water evaporated from mountains

Last Answer : Cyclonic activity

A process in which heat energy is transferred by the flow of fluid.  a. Convection  b. Conduction  c. Radiation  d. Sublimation

Description : A process in which heat energy is transferred by the flow of fluid.  a. Convection  b. Conduction  c. Radiation  d. Sublimation

Last Answer : Convection

_________ is the transition of a given substance from the solid to the gas phase with no intermediate liquid stage.  a. Convection  b. Conduction  c. Radiation  d. Sublimation

Description : _________ is the transition of a given substance from the solid to the gas phase with no intermediate liquid stage.  a. Convection  b. Conduction  c. Radiation  d. Sublimation

Last Answer : Sublimation

When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation

Description : When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation

Last Answer : ANSWER: A

When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation

Description : When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation

Last Answer : ANSWER: A

When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation

Description : When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation

Last Answer : ANSWER: A

When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation

Description : When a gas turns into a liquid the process is called: A. Condensation B. Evaporation C. Deposition D. Sublimation

Last Answer : ANSWER: A

Define the following : Sublimation , Melting Point , Fusion , Evaporations , Boiling Point , Vapourization , Condensation , Deposition.

Description : Define the following : Sublimation , Melting Point , Fusion , Evaporations , Boiling Point , Vapourization , Condensation , Deposition.

Last Answer : Ans : Sublimation : Sublimation is the process in which some solids upon heating instead of changing into liquid state are converted directly into gaseous (vapour) state. Example : Ammonium Chloride ... happens from the gaseous phase into the solid phase directly, the change is called deposition.

The changing of solid directly to vapor without passing through liquid state is called  a. Evaporation  b. Vaporization  c. Sublimation  d. Condensation

Description : The changing of solid directly to vapor without passing through liquid state is called  a. Evaporation  b. Vaporization  c. Sublimation  d. Condensation

Last Answer : Sublimation

The heat absorbed by a unit mass of a material at its holding point in order to convert the material into a gas at the same temperature.  a. Latent Heat of Sublimation  b. Latent Heat of Vaporization  c. Latent Heat of Fusion  d. Latent Heat Of Condensation

Description : The heat absorbed by a unit mass of a material at its holding point in order to convert the material into a gas at the same temperature.  a. Latent Heat of Sublimation  b. Latent Heat of Vaporization  c. Latent Heat of Fusion  d. Latent Heat Of Condensation

Last Answer : Latent Heat of Vaporization

What is defined as the direct conversion of a substance from the solid to the vapor state or vice versa without passing the liquid state?  A. Condensation  B. Vaporization  C. Sublimation  D. Cryogenation

Description : What is defined as the direct conversion of a substance from the solid to the vapor state or vice versa without passing the liquid state?  A. Condensation  B. Vaporization  C. Sublimation  D. Cryogenation

Last Answer : Sublimation

____ is when water goes from a solid to a gas without passing through the liquid phase. a. Transfusion c. Evaporation b. Sublimation d. Condensation

Description : ____ is when water goes from a solid to a gas without passing through the liquid phase. a. Transfusion c. Evaporation b. Sublimation d. Condensation

Last Answer : b. Sublimation

The process of a solid converting directly into a gas is called: w) fusion x) sublimation y) condensation z) distillation

Description : The process of a solid converting directly into a gas is called: w) fusion x) sublimation y) condensation z) distillation

Last Answer : ANSWER: X -- SUBLIMATION 

The bubbling off of carbon dioxide when a bottle of carbonated beverage is opened is a good example of: w) deliquescence x) effervescence y) condensation z) sublimation

Description : The bubbling off of carbon dioxide when a bottle of carbonated beverage is opened is a good example of: w) deliquescence x) effervescence y) condensation z) sublimation

Last Answer : ANSWER: EFFERVESCENCE

The specific terms used in phase transitions  a. melting  b. evaporation  c. freezing  d. sublimation

Description : The specific terms used in phase transitions  a. melting  b. evaporation  c. freezing  d. sublimation

Last Answer : evaporation

Gibbs phase rule finds application, when heat transfer occurs by (A) Conduction (B) Convection (C) Radiation (D) Condensation

Description : Gibbs phase rule finds application, when heat transfer occurs by (A) Conduction (B) Convection (C) Radiation (D) Condensation

Last Answer : (D) Condensation

Heat is transferred from the sun to the earth primarily by: w) conduction x) convection y) radiation z) condensation

Description : Heat is transferred from the sun to the earth primarily by: w) conduction x) convection y) radiation z) condensation 

Last Answer : ANSWER: Y -- RADIATION

Trade winds are due to – (1) Conduction (2) Convection (3) Radiation (4) Scattering

Description : Trade winds are due to – (1) Conduction (2) Convection (3) Radiation (4) Scattering

Last Answer : (2) Convection Explanation: The air moving across the surface towards the extra heated region is known as the trade winds. The region where the northern convective airflow meets the southern and the air starts ... drops heavy rain, but since it's moving up instead of across it won't fill sails.

Land and sea-breezes occur due to : (1) Conduction (2) Convection (3) Radiation (4) Tides

Description : Land and sea-breezes occur due to : (1) Conduction (2) Convection (3) Radiation (4) Tides

Last Answer : (2) Convection Explanation: During the day, the sun warming the land also warms the air. Since land heats up quicker than water does, the air over land gets warmer than the air over the water. ... Breeze. Reversely, at night the land cools down faster than the water does, and creates a Land Breeze.

How is the relationship between freezing and melting similar to the relationship between condensation and evaporation?

Description : How is the relationship between freezing and melting similar to the relationship between condensation and evaporation?

Last Answer : do not knowhow 2 do this problemcan u plz help me

Electric strip heaters are used in motor controllers to _____________. A. prevent freezing of movable contacts B. keep the components at their design ambient temperature C. prevent condensation of moisture D. minimize resistance in internal circuits

Description : Electric strip heaters are used in motor controllers to _____________. A. prevent freezing of movable contacts B. keep the components at their design ambient temperature C. prevent condensation of moisture D. minimize resistance in internal circuits

Last Answer : Answer: C

Define the term melting, boiling, evaporation, condensation, freezing.

Description : Define the term melting, boiling, evaporation, condensation, freezing.

Last Answer : ∗ Melting:- The temperature at which things melt is called melting. ∗ Boiling:- The temperature at which liquid things boil is called boiling point. ∗ Evaporation:- When water is heated, it changes into ... . ∗ Freezing. When water is cooled, it freezes into form of ice. This is called freezing.

Change of state namely evaporation condensation, freezing and melting is an __________ process. (A) Isothermal (B) Adiabatic (C) Isobaric (D) Isochoric

Description : Change of state namely evaporation condensation, freezing and melting is an __________ process. (A) Isothermal (B) Adiabatic (C) Isobaric (D) Isochoric

Last Answer : (A) Isothermal

Rainfall in India is not associated with: (a) orography (b) convection (c) cyclones (d) anticyclones

Description : Rainfall in India is not associated with: (a) orography (b) convection (c) cyclones (d) anticyclones

Last Answer : Ans: (d)

Solar energy is received by the earth through – (1) conduction (2) radiation (3) convection (4) refraction

Description : Solar energy is received by the earth through – (1) conduction (2) radiation (3) convection (4) refraction

Last Answer : (2) radiation Explanation: In physics, radiation is a process in which energetic particles or energetic, waves travel through vacuum, or through mattercontaining media that are not required for ... Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the upper atmosphere.

Atmospheric temperature increasing at the higher altitudes is called – (1) Radiation (2) Inversion (3) Conduction (4) Convection

Description : Atmospheric temperature increasing at the higher altitudes is called – (1) Radiation (2) Inversion (3) Conduction (4) Convection

Last Answer : (2) Inversion Explanation: The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer ... as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.

Condensation is the reverse of – (1) Vaporization (2) Smog (3) Cirrus cloud (4) Fog

Description : Condensation is the reverse of – (1) Vaporization (2) Smog (3) Cirrus cloud (4) Fog

Last Answer : (1) Vaporization Explanation: Condensation is the change of physical state of matter from gaseous phase into liquid phase and is the reverse of vaporization. When the relative humidity reaches 100 per cent, the air is completely saturated. The air temperature is said to be as dew-point.

Sodium vapour lamps glow with yellow colour. This is due to - (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

Description : Sodium vapour lamps glow with yellow colour. This is due to - (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the ... (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

Last Answer : (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum Explanation: Sodium Vapour Lamps glow with yellow colour due to the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum.

Which of the following statement(s) is (are) true for the given situation? Exposure of silver chloride to sunlight for a long duration turns grey due to (i) formation of silver by decomposition of silver chloride (ii) sublimation of silver chloride (iii) decomposition of chlorine gas from silver chloride (iv) oxidation of silver chloride (a) (i) only (b) (ii), (i) and (iii) (c) (ii) and (iii) (d) (iv) only

Description : Which of the following statement(s) is (are) true for the given situation? Exposure of silver chloride to sunlight for a long duration turns grey due to (i) formation of silver by decomposition of silver chloride (ii) sublimation of ... (b) (ii), (i) and (iii) (c) (ii) and (iii) (d) (iv) only

Last Answer : (a) (i) only

Sodium vapour lamps glow with yellow colour. This is due to (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

Description : Sodium vapour lamps glow with yellow colour. This is due to (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the ... (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

Last Answer : the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum

When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is due to the phenomenon of : (1) evaporation (2) vaporisation (3) diffusion (4) sublimation

Description : When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is due to the phenomenon of : (1) evaporation (2) vaporisation (3) diffusion (4) sublimation

Last Answer : diffusion

What caused the global convection current between the equator and the poles?

Description : What caused the global convection current between the equator and the poles?

Last Answer : Surface currents are caused by wind, and affected by therotation of the Earth and the gravity of the moon (tides). When theoceans are deep, convection within the layers can also affect theflow ... no corresponding heating of the oceanbottom by the Sun. So currents do not form spontaneously atdepth.

Water hammer is caused in steam carrying pipelines, because of (A) Partial condensation of steam (B) Vibration of the pipeline (C) High degree of superheat of steam (D) Its exposure to torrential rain

Description : Water hammer is caused in steam carrying pipelines, because of (A) Partial condensation of steam (B) Vibration of the pipeline (C) High degree of superheat of steam (D) Its exposure to torrential rain

Last Answer : (A) Partial condensation of steam

Marginal leakage at the proximal gingival cavosurface of a recently restored class II can be caused by: I. Insufficient condensation II. First proximal increment was too large III. Neglecting to wedge the matrix IV. Hand manipulation instead of mechanical V. Debris contamination A. I, II, III B. II, III, IV C. I, II, V D. None of the above E. All of the above

Description : Marginal leakage at the proximal gingival cavosurface of a recently restored class II can be caused by: I. Insufficient condensation II. First proximal increment was too large III. Neglecting to wedge the matrix IV. Hand ... III, IV C. I, II, V D. None of the above E. All of the above

Last Answer : C. I, II, V

'October Heat' is caused due to (a) the absence of rain (b) combination of high temperature and excessive humidity (c) dry hot weather (d) None of the above

Description : 'October Heat' is caused due to (a) the absence of rain (b) combination of high temperature and excessive humidity (c) dry hot weather (d) None of the above

Last Answer : Ans: (b)

Which one of the following statements is wrong regarding the "Norwesters" of Bengal? [IAS 2003] (a) It is caused due to strong surface heating (b) It originates in the Chhotanagpur plateau region (c) It is a kind of thunderstorm (d) None of the above

Description : Which one of the following statements is wrong regarding the "Norwesters" of Bengal? [IAS 2003] (a) It is caused due to strong surface heating (b) It originates in the Chhotanagpur plateau region (c) It is a kind of thunderstorm (d) None of the above

Last Answer : Ans: (d)

Cyclones are caused due to – (1) low pressure (2) high pressure (3) low temperature (4) high density

Description : Cyclones are caused due to – (1) low pressure (2) high pressure (3) low temperature (4) high density

Last Answer : (1) low pressure Explanation: Cyclones are huge revolving storms caused by winds blowing around a central area of low atmospheric pressure. In the northern hemisphere, cyclones are called hurricanes ... hemisphere, these tropical storms arc known as cyclones, whose winds blow in a clockwise circle.

A landscape which is caused due to the fissure in the earth along which one side has moved down with reference to the other is known as – (1) Rift Valley (2) U Shaped Valley (3) V Shaped Valley (4) Hanging Valley

Description : A landscape which is caused due to the fissure in the earth along which one side has moved down with reference to the other is known as – (1) Rift Valley (2) U Shaped Valley (3) V Shaped Valley (4) Hanging Valley

Last Answer : (2) U Shaped Valley Explanation: A rift valley is a linear-shaped lowland caused due to the fissure in the earth along which one side moves down with reference to the other. It is commonly ... valley is formed on a divergent plate boundary, a crustal extension, a spreading apart of the surface.

Pick out the wrong statement. (A) Caustic embrittlement of boiler's metallic parts is caused by highconcentration of caustic soda in boiler feed water(B) Cooling and freezing of water kills the bacteria present in it(C) With increasing boiler operating pressure of steam, the maximumallowable concentration of silica in feed water goes on decreasing(D) Dissolved oxygen content in high pressure boiler feed water should benil

Description : Pick out the wrong statement. (A) Caustic embrittlement of boiler's metallic parts is caused by highconcentration of caustic soda in boiler feed water (B) Cooling and freezing of water kills the ... goes on decreasing (D) Dissolved oxygen content in high pressure boiler feed water should be nil

Last Answer : (B) Cooling and freezing of water kills the bacteria present in it

The surface of water in a pond remains cool even on a hot day because 1. water evaporates at the surface and evaporation causes cooling 2. the heat absorbed at the surface is transmitted downwards 3. Water in contact with the bottom of the pond becomes cool and rises to the surface due to convection Which of the above statements is/are correct? (a) 1 only (b) 3 only (c) 1 and 3 (d) 1, 2 and 3

Description : The surface of water in a pond remains cool even on a hot day because 1. water evaporates at the surface and evaporation causes cooling 2. the heat absorbed at the surface is transmitted downwards 3. Water in contact with the bottom ... /are correct? (a) 1 only (b) 3 only (c) 1 and 3 (d) 1, 2 and 3

Last Answer : Ans:(a)

One feels cold after a dip in sea water due to (a) convection currents (b) the deposition of salt on the body (c) the evaporation of water on the body (d) the difference in temperatures between land and sea

Description : One feels cold after a dip in sea water due to (a) convection currents (b) the deposition of salt on the body (c) the evaporation of water on the body (d) the difference in temperatures between land and sea

Last Answer : Ans:(c)

Even after sunset, the air near the Earth's surface continue to receive heat due to – (1) Insolation (2) Terrestrial Radiation (3) Conduction (4) Convection

Description : Even after sunset, the air near the Earth's surface continue to receive heat due to – (1) Insolation (2) Terrestrial Radiation (3) Conduction (4) Convection

Last Answer : (2) Terrestrial Radiation Explanation: Even after the sunset when the sun goes down, the incoming radiation from the sun stops, but there is still a lot of radiation that has been absorbed ... i.e. terrestrial radiation heats up the atmosphere more than the incoming solar radiation i.e. insolation

Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the (A) Existence of thermal boundary layer (B) Temperature gradient produced due to density difference (C) Buoyancy of the bubbles produced at active nucleation site (D) None of these

Description : Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the (A) Existence of thermal boundary layer (B) Temperature gradient produced ... difference (C) Buoyancy of the bubbles produced at active nucleation site (D) None of these

Last Answer : (D) None of these

The charge build up in the capacitor is due to which quantity? a) Conduction current b) Displacement current c) Convection current d) Direct current

Description : The charge build up in the capacitor is due to which quantity? a) Conduction current b) Displacement current c) Convection current d) Direct current

Last Answer : d) Direct current

The mcrease in heat dissipation by air blasts is due to increase in (a) conduction (b) convection (e) radiation (d) any ofthe above

Description : The mcrease in heat dissipation by air blasts is due to increase in (a) conduction (b) convection (e) radiation (d) any ofthe above

Last Answer : (b) convection

Even after sunset, the air near the Earth’s surface continue to receive heat due to (1) Insolation (2) Terrestrial Radiation (3) Conduction (4) Convection

Description : Even after sunset, the air near the Earth’s surface continue to receive heat due to (1) Insolation (2) Terrestrial Radiation (3) Conduction (4) Convection

Last Answer : Terrestrial Radiation