When does Radiation occur?

Q: What does thermal interaction cause?

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Q: What happens to atoms and molecules as there temperature increases?

A: The heat energy absorption by a mass particle increases it's temperature

Q: In what form does the radiant energy travels?

A: Light is the form of radiant energy. Radiant energy travels through waves or particles.

Q: Why does an air bubble in water rise from bottom to top and grow in size?

A: As the water poured is directly proportional to the depth of the water, the water depth in the body…

Q: Would regelation occur if ice crystals did not have an open structure? Explain.

A: The structure of ice is similar to that of water molecules. There exist hydrogen bonds in ice…

Q: What do you mean by ripple factor?

A: The fluctuation of AC component present in the rectified DC output is called as Ripple. The output…

Q: Which represents a greater change in temperature: an increase of 1°C. 1'F, or 1 K?

A: Comparatively, the 1 degree rise in the Celsius is hotter than 1 degree rise in Fahrenheit as 1…

Q: Why is Mercury Used in Thermometers?

A: Mercury is the only metal that is in liquid state at room temperature. It is used in thermometers…

Q: What does Radiation include?

A: One form of radiation is pure energy with no weight. This form of radiation known as electromagnetic…

Q: How does emission take place?

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Q: Why do we feel hot after a long period of running or doing exercise?

A: When we do running or any exercise, it will lead to increase in the muscular activity.

Q: A steaming pot of water is resting on a red hot burner is that convection?

A: Convection is the process of heat transfer in fluid through currents.

Q: All objects radiate energy?

A: Objects and different temperature emits radiation of different frequencies. Some fall in visible and…

Q: Ex -rys d aanelength to Pm are scaltered hrom a tanget seatered chrongh L15.6) hnd he, makimam…

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Q: Differentiate the Seeback and the Peltier effect using a neat diagram.

A: Given Data : Seeback effect  Peltier effect

Q: Discuss the function of photovoltaic cell.What does it produce?

A: The photovoltaic cell is a cell which is used to convert the light into direct current. It works in…

Q: Why does a chunk of coal burn when ignited, whereas coal dust explodes?

A: The surface area of chunk of coal per volume is less than coal dust. More surface area per volume…

Q: Some solar energy devices used in homes circulate air over a bed of rocks that absorb thermal energy…

A: Use principle of calorimetry and put the values to calculate energy stored.    Given:mass of…

Q: Do flames contain plasma?

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Q: What is sonoluminescence?

A: Question. What is sonoluminescence?

Q: What is meter bridge?

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Q: Why does the water in a car radiator sometimes boil explosively when the radiator cap is removed?

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Q: What is meant by temperature radiation?

A: When a matter having temperature greater than absolute zero, certain amount of electromagnetic waves…

Q: Why do we wear white or light coloured clothes in summer and dark coloured clothes in winter?

A: White or light coloured clothes reflects light, which is reflects heat. So it helps to possess our…

Q: If a room-temperature spoon is placed into a hot cup of coffee, followed by a teaspoon of cream from…

A: Given that a room-temperature spoon is placed into a hot cup of coffee, followed by a teaspoon of…

Q: Why does ball pen ink written on paper does not spread when water is spilled on it?

A: Ink and water are immiscible liquids so they don't mix

Q: Discuss the function of a photovoltaic cell. What does it produce from what?

A: The fundamental thought behind photovoltaic (or 'sun powered') cells is quite straightforward. To…

Q: Why is the thermal conductivity of superinsulation orders of magnitude lower than the thermal…

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Q: Steaming cup of hot tea Is this Conduction, convection, or radiation

A: Conduction-when heat passes through solid in which heat passes from one point to another by…

Q: In a closed room dust generally settles down. Why?

A: Dust generally settles down in a closed room. The small dust particles acquire a very small terminal…

Q: Which is denser, ice at 0 °C or water at 4 °C?

A: Given: Ice at 0o C and water at 4o C The mass-to-volume ratio is related to density.

Q: What happens to the temperature of the object that radiates energy without absorbing the same amount…

A: If an object radiates energy with absorbing the same amount in return, then there is no net effect…

Q: Why does a body emit radiations of all wavelengths and not for a particular wavelength?

A: Wavelength – When we consider a point on a single wave, then the measurement of the distance between…

Q: What Is Funnel Used For?

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Q: Why don't atoms collapse if they are mostly empty space?

A: Atoms are not mostly empty space because there is no such thing as purely empty space. Rather, space…

Q: When Bose-Einstein condensation occurs in systems ?

A: The meaning of Bose-Einstein condensation reflects the state of matter, in which the atoms or…

Q: some objects radiate thermal energy?

A: Thermal radiations are those radiations which produce in us the sensation of warmth due to of its…