Clear nights are colder than cloudy nights because of – (1) conduction (2) condensation (3) radiation (4) insolation

Clear nights are colder than cloudy nights because of – (1) conduction (2) condensation (3) radiation (4) insolation
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(3) radiation Explanation: Cloudless nights are colder because the nights that have clouds provide a blanket for the earth and trap some of the hot day air where as the cloudless nights have no protection so all the hot air rises up into the sky. radiation is a process in which energetic particles or energetic waves travel through vacuum, or through matter-containing media that are not required for their propagation.
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Clear nights are colder than cloudy nights because of (1) conduction (2) condensation (3) radiation (4) insolation

Description : Clear nights are colder than cloudy nights because of (1) conduction (2) condensation (3) radiation (4) insolation

Last Answer : radiation

Why are Clear nights colder than cloudy nights? -Do You Know?

Description : Why are Clear nights colder than cloudy nights? -Do You Know?

Last Answer : answer:

Why are Clear nights colder than cloudy nights?

Description : Why are Clear nights colder than cloudy nights?

Last Answer : Because of Radiation

The cloudy nights are warmer compared to clear nights (without clouds) during winter days. This is because: (A) clouds radiate heat towards the earth (B) clouds prevent cold wave from the sky, descend on earth (C) clouds prevent escaping of the heat radiation from the earth (D) clouds being at great heights from earth absorb heat from the sun and send towards the earth

Description : The cloudy nights are warmer compared to clear nights (without clouds) during winter days. This is because: (A) clouds radiate heat towards the earth (B) clouds prevent cold wave from the sky, ... (D) clouds being at great heights from earth absorb heat from the sun and send towards the earth

Last Answer : (C) clouds prevent escaping of the heat radiation from the earth

Why are Clear nights cooler than cloudy nights?

Description : Why are Clear nights cooler than cloudy nights?

Last Answer : – Because of radiation

The atmosphere is heated mainly by (1) Insolation (2) Conduction (3) Radiation (4) Convection

Description : The atmosphere is heated mainly by (1) Insolation (2) Conduction (3) Radiation (4) Convection

Last Answer : Radiation

Less dew is formed on cloudy nights because (a) Clouds absorb the falling dew (b) Clouds scatter moisture (c) In cloudy nights the radiation takes place very slowly (d) In cloudy nights the radiation takes place very quickly

Description : Less dew is formed on cloudy nights because (a) Clouds absorb the falling dew (b) Clouds scatter moisture (c) In cloudy nights the radiation takes place very slowly (d) In cloudy nights the radiation takes place very quickly

Last Answer : Ans:(d)

Why are Clear nights cooler than cloudy nights? -Do You Know?

Description : Why are Clear nights cooler than cloudy nights? -Do You Know?

Last Answer : answer:

Why are Clear nights cooler than cloudy nights?

Description : Why are Clear nights cooler than cloudy nights?

Last Answer : Because of radiation

Cloudy nights are usually warmer than the clear ones.

Description : Cloudy nights are usually warmer than the clear ones.

Last Answer : Ans: The clouds serve as a barrier and prevent the loss of heat. Thus the warm temperature is maintained.

Give scientific reason of the following: (1) Pole star is always seen in the north. (2) We never see birds urinating. (3) Pasteurized milk has more nourishment than the ordinary boiled milk. (4) Bees die when they sting human beings. (5) Cloudy nights are usually warmer than the clear ones.

Description : Give scientific reason of the following: (1) Pole star is always seen in the north. (2) We never see birds urinating. (3) Pasteurized milk has more nourishment than the ordinary boiled milk. (4) Bees die when they sting human beings. (5) Cloudy nights are usually warmer than the clear ones.

Last Answer : (1) Pole star is always seen in the north. Because the pole star, which we have in the south, is too faint that it cannot be seen from the naked eye. or Because the earths motion is from ... to get lost in the atmosphere, above the clouds. Ultimately, the heat produced in the vicinity is restored.

Cloudy nights are wanner compared nights, because clouds mainly – (1) Absorb heat from the atmosphere send it towards earth (2) Prevent cold waves from the sky descending on earth (3) Reflect back the heat given by earth (4) Produce heat and radiate it toward earth

Description : Cloudy nights are wanner compared nights, because clouds mainly – (1) Absorb heat from the atmosphere send it towards earth (2) Prevent cold waves from the sky descending on earth (3) Reflect back the heat given by earth (4) Produce heat and radiate it toward earth

Last Answer : (3) Reflect back the heat given by earth Explanation: It is because the night side of Earth will radiate infra-red radiation (heat) back into space. When there is cloud cover, the clouds act like a blanket and trap the heat close to the ground just like a blanket traps heat close to our body.

Cloudy nights are warmer compared nights, because clouds mainly (1) absorb heat from the atmosphere send it towards earth (2) prevent cold waves from the sky descending on earth (3) reflect back the heat given by earth (4) produce heat and radiate it toward earth

Description : Cloudy nights are warmer compared nights, because clouds mainly (1) absorb heat from the atmosphere send it towards earth (2) prevent cold waves from the sky descending on earth (3) reflect back the heat given by earth (4) produce heat and radiate it toward earth

Last Answer : reflect back the heat given by earth

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

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

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

Why cloudless nights are better for dew deposits than cloudy nights ?

Description : Why cloudless nights are better for dew deposits than cloudy nights ?

Last Answer : During the day, the sun's heat keeps the air near the surface warm and unsaturated by water vapor. On a cloudless night, the surface radiates heat and cools, eventually reaching a temperature when the air ... from the surface. As a result, the surface does not get cold and dew does not freeze.

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

The word ‘insolation’ means (1) matters which insulate (2) incoming solar radiation (3) insoluble matters (4) None of the above

Description : The word ‘insolation’ means (1) matters which insulate (2) incoming solar radiation (3) insoluble matters (4) None of the above

Last Answer :  incoming solar radiation

Air over the oceans is colder in summer and warmer in winter compared with air over the continental regions. This is because (a) Water is translucent and has a relatively high heat capacity compared to dirt (b) Compared to dirt, a thicker layer of water participates in the seasonal cycle (c) The albedo of water is greater than that of land and thus reflects more solar radiation (d) Both A and B are true (e) The effect is due to the changes in circulation between continents and oceans

Description : Air over the oceans is colder in summer and warmer in winter compared with air over the continental regions. This is because (a) Water is translucent and has a relatively high heat capacity compared ... B are true (e) The effect is due to the changes in circulation between continents and oceans

Last Answer : (d) Both A and B are true

Select the right option from the given alternatives. Quixotic : Pragmatic :: Murky : ________ (a) Rapid (b) Cloudy (c) Clear (d) Friendly

Description : Select the right option from the given alternatives. Quixotic : Pragmatic :: Murky : ________ (a) Rapid (b) Cloudy (c) Clear (d) Friendly

Last Answer : Ans: c) clear 

When does the air cool most rapidly? Is it during w) a cloudy day x) a cloudy night y) a sunny day z) a clear night

Description : When does the air cool most rapidly? Is it during w) a cloudy day x) a cloudy night y) a sunny day z) a clear night

Last Answer : ANSWER: Z -- A CLEAR NIGHT

The solar radiation coming to Earth is called – (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation

Description : The solar radiation coming to Earth is called – (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation

Last Answer : (2) Insolation Explanation: Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects ... the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.

At which latitude, heat gain through insolation approximately equals heat loss through terrestrial radiation? (a) 22 1 2 ° North and South (b) 40° North and South (c) 42 1 2 ° North and South (d) 66° North and South

Description : At which latitude, heat gain through insolation approximately equals heat loss through terrestrial radiation? (a) 22 1 2 ° North and South (b) 40° North and South (c) 42 1 2 ° North and South (d) 66° North and South

Last Answer : (b) 40° North and South

It is the deposition of radiant energy as heat into an absorbing body.  a. Radiation  b. Ionization  c. Convection  d. Insolation

Description : It is the deposition of radiant energy as heat into an absorbing body.  a. Radiation  b. Ionization  c. Convection  d. Insolation

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The available incoming solar radiation is known as: w) reflection x) insolation y) reradiation z) absorption

Description : The available incoming solar radiation is known as: w) reflection x) insolation y) reradiation z) absorption

Last Answer : ANSWER: X -- INSOLATION

The solar radiation coming to Earth is called (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation

Description : The solar radiation coming to Earth is called (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation 

Last Answer : Insolation

Define : i) Diffuse radiation ii) Beam radiation ii) Insolation iv) Solar constant

Description : Define : i) Diffuse radiation ii) Beam radiation ii) Insolation iv) Solar constant

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Radio telescopes are better than optical telescopes because - (1) they can detect faint galaxies which no optical telescope can (2) they can work even in cloudy conditions (3) they can work during the day and night (4) All of the above

Description : Radio telescopes are better than optical telescopes because - (1) they can detect faint galaxies which no optical telescope can (2) they can work even in cloudy conditions (3) they can work during the day and night (4) All of the above

Last Answer : (4) All of the above

On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because – (1) metals have higher thermal capacity than plastics (2) plastics have a lower density than metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Description : On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because - (1) metals ... metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Last Answer : (3) metals are good conductors of heat Explanation: On a chilly day, the room temperature is lower than our body temperature. Since metals have a higher coefficient of thermal conductivity than plastic, they ... from our fingers will flow to the metal cap much more quickly than to the plastic body.

On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : (1) metals have higher thermal capacity than plastics (2) plastics have a lower density than metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Description : On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : (1) metals ... metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Last Answer : metals are good conductors of heat

Transfer of heat energy from a heater coil to the cooking vessel takes place through the process of- (1) Convection only (2) Conduction and convection only (3) Radiation and convection only (4) Convection, conduction and radiation

Description : Transfer of heat energy from a heater coil to the cooking vessel takes place through the process of- (1) Convection only (2) Conduction and convection only (3) Radiation and convection only (4) Convection, conduction and radiation

Last Answer : (3) Radiation and convection only Explanation: Conduction is the transfer of heat energy by direct contact, convection is the movement of heat by actual motion of matter; radiation is the transfer of energy with the help of electromagnetic waves.

Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in – (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Description : Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in – (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Last Answer : (2) Convection Explanation: The process of heat transfer from one place to an-other place without the movement of particles is called conduction Example: Heat transfer through Metal rods. On the ... heated particles of the substance. The fluids (liquids and gases) are heated by this process.

Energy travels from Sun to Earth through – (1) conduction (2) convection (3) radiation (4) modulation

Description : Energy travels from Sun to Earth through – (1) conduction (2) convection (3) radiation (4) modulation

Last Answer : (3) radiation

Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in - (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Description : Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in - (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Last Answer : (2) Convection Explanation: The process of heat transfer from one place to another place without the movement of particles is called conduction,

Heat from the sun reaches earth by the process of – (1) Conduction (2) Convection (3) Radiation (4) All of the above

Description : Heat from the sun reaches earth by the process of – (1) Conduction (2) Convection (3) Radiation (4) All of the above

Last Answer : (3) 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 their propagation.

Suns heat reaches us by – (1) Conduction (2) Convection (3) Radiation (4) Reflection

Description : Suns heat reaches us by – (1) Conduction (2) Convection (3) Radiation (4) Reflection

Last Answer : (3) Radiation Explanation: Radiation is a process in which energetic particles or energetic waves travel through vacuum, or through matter-containing media that are not required for their propagation. The sun' ... frequencies), but those from the sun are mainly infra-red, visible, and ultra-violet.

Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Description : Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Last Answer : (3) Radiation Explanation: The radiation (light, heat, etc.) travels through the intervening 150,000,000 kilometers in 8 minutes. Radiation is a process in which energetic particles or energetic waves ... waves or sound waves, are usually not considered to be forms of "radiation" in this sense.

The atmosphere is heated mainly by – (1) Insulation (2) Conduction (3) Radiation (4) Convection

Description : The atmosphere is heated mainly by – (1) Insulation (2) Conduction (3) Radiation (4) Convection

Last Answer : (3) Radiation Explanation: Changes in weather involve air movements, formation of clouds, and precipitation. Energy is needed to make all these things happen. That energy comes from the sun. Heat energy ... radiation. Hot bodies such as the sun radiate their energy mainly in the form of short waves.

Ocean currents are an example of – (1) convection (2) conduction (3) insulation (4) radiation

Description : Ocean currents are an example of – (1) convection (2) conduction (3) insulation (4) radiation

Last Answer : (1) convection Explanation: Heat is transferred by convection in numerous examples of naturally occurring fluid flow, such as: wind, oceanic currents, and movements within the Earth's atmosphere. ... transfer heat from the surplus to deficit heat zones and set the oceanic circulation in motion.

In EXTRA-TERRESTRIAL SPACE, heat is transferred by: w) conduction x) convection y) conduction and convention z) radiation

Description : In EXTRA-TERRESTRIAL SPACE, heat is transferred by: w) conduction x) convection y) conduction and convention z) radiation

Last Answer : ANSWER: Z -- RADIATION

Heat from the sun reaches the Earth by: w) conduction x) convection y) radiation z) none of the above

Description : Heat from the sun reaches the Earth by: w) conduction x) convection y) radiation z) none of the above

Last Answer : ANSWER: Y -- RADIATION

Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Description : Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in (1) Conduction (2) Convection (3) Radiation (4) Both conduction and convection

Last Answer : Convection

Energy travels from Sun to Earth through (1) conduction (2) convection (3) radiation (4) modulation

Description : Energy travels from Sun to Earth through (1) conduction (2) convection (3) radiation (4) modulation

Last Answer : radiation

Ocean currents are an example of (1) convection (2) conduction (3) insulation (4) radiation

Description : Ocean currents are an example of (1) convection (2) conduction (3) insulation (4) radiation

Last Answer : convection

Sun’s heat reaches us by (1) Conduction (2) Convection (3) Radiation (4) Reflection

Description : Sun’s heat reaches us by (1) Conduction (2) Convection (3) Radiation (4) Reflection

Last Answer : Radiation

Heat from the sun reaches earth by the process of (1) Conduction (2) Convection (3) Radiation (4) All of the above

Description : Heat from the sun reaches earth by the process of (1) Conduction (2) Convection (3) Radiation (4) All of the above

Last Answer : Radiation

Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Description : Heat from the Sun reaches the Earth by (1) Reflection (2) Conduction (3) Radiation (4) Convection

Last Answer : Radiation

Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because (A) Convection becomes important (B) Conduction becomes important (C) Radiation becomes important (D) Sub-cooled boiling occurs

Description : Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because (A) Convection becomes important (B) Conduction becomes important (C) Radiation becomes important (D) Sub-cooled boiling occurs

Last Answer : (C) Radiation becomes important