Why is white wash sometimes applied to the glass of florists greenhouses in the summer?

Q: Discuss the purpose of a layer of copper or aluminum on the bottom of stainless steel cookware?

A: Copper and aluminum are the very good and efficient conductors of heat.

Q: How is radiation used to gauge the thickness of paper?

A: The quality or thickness of paper is given by the grams per meter squared (gsm) of the paper. Higher…

Q: Water vapor is an invisible gas. How can an increase in relative humidity affect visibility?

A: Water vapour is the gaseous condition of H2O that is imperceptible to the naked eye. Clouds are…

Q: On a humid day, you may notice that water droplets condense on the outside of glass on cold…

A: Condensation is Define as the process where water vapor becomes liquid. During the process of the…

Q: Why are icebergs often surrounded by fog?

A: Temperature of ice burgs will be very low , it will be below zero degree Celsius .   Moisture…

Q: Standing in front of a fire, we can sense both its heat and its light. How are the light and heat…

A: Standing in front of a fire, we can sense both its heat and its light.  The light and heat radiated…

Q: Staineless steel copper pans are preferred with an extra copper bottom why?

A: The thermal conductivity of copper is greater than that of the stainless steel.

Q: What is the effect of temperature on angle of contact?

A: If the temperature increases, angle of contact decreases due to decrease cohesive force and if the…

Q: The nature of surfaces affects the absorption and the reflection of radiation. Assume that you are…

A: A good absorber will always be a good emitter.  Absorbvity of dark colours are always higher than…

Q: Make up a multiple-choice question that would test a classmate’s understanding of the distinction…

A:

Q: Why firewalkers dont burn their wetted feet when they walk barefoot on red-hot coals

A:

Q: What makes the tile floor so much cooler than the bathroom mat when I walk out of the shower?

A: The thermal conductivity of tiles is greater than that of the mat. It implies that heat can be…

Q: 28) Which of the thermometer listed A -Dis a standard thermometer A) Constant volume gas…

A: Thermometer is a device used for measuring temperature.

Q: When you rub a piece of ebonite (very hard, black rubber) across a piece of animal fur which…

A: On rubbing a piece of material with another we are doing charging by method of friction.  In method…

Q: When watching a circus during the day in a large, dark-colored tent, you sense significant heat…

A:

Q: Cite a primary difference between waves of solar radiation and waves of terrestial radiation?

A: Solar radiation is the radiant energy produced by the Sun from a nuclear reaction. Terrestrial…

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

A:

Q: Blue color of the sky represents Tyndall effect a)T b)f

A: The blue color of sky is due to scattering of white light from the dust particles present in…

Q: When I step out of the shower, what makes the tile floor so much colder than the bathroom mat?

A: Air is a better insulator. The tiles transfer heat more than the mat, which means that the floor…

Q: The inner and outer glasses of a 4-ft * 4-ft double- pane window are at 60°F and 48°F, respectively.…

A: Write the given values, determine the average temperature, and also determine the heat transfer…

Q: Can an object be good absorber and a good reflector at the same time? Why, or why not?

A: A good absorber reflects very little light. Black is good absorber and white is a good reflector.

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: Y-ахis Х-ахis 46 Temperature of a point on the axis of a Displacement of points from the hotter…

A:

Q: Consider a person sitting nude sun is absorbed by the person a the individual's skin temperatu…

A: Given:- On a sunny day, The visible radiation energy from the sun is absorbed by the person at a…

Q: What is the importance of recording the room temperature and atmospheric pressure prior to the…

A: Temperature- temperature is an an important fundamental parameter which shows that whether a…

Q: at beach, you can get a sunburn while under the shade of an umbrella.What is your explanation?

A: Despite of being under the shade or umbrella, one can get the sunburns at the beach because…

Q: Why is the sky darker blue when you are at high altitudes?

A: The blue wavelength of sunlight are preferentially scattered by the Earth’s atmosphere. So generally…

Q: 19. Saniya lives in a cold climate. In the winter, her attic gets extremely cold. She has decided to…

A: We know that the winter is the coldest season of the year in polar.

Q: Why does a concert violinist must usually retune his instrument when he enters a warm room?

A: Given:  violin

Q: Which Thermometer would be better suited to measuring the temperature of liquid nitrogen at 77K?

A: Introduction: Temperature is the physical quantity, which measures the equivalent amount of energy…

Q: structions: What temperature is shown on the thermometer? 100°. 90° 80° 70° 60 50 40° 30% 20° 10° 0%

A: First, look into the scale of the thermometer. In the given question or diagram 100 is divided into…

Q: What is terrestrial radiation?

A: The terrestrial radiation is the electromagnetic radiation that is emitted by the surface of the…

Q: Water at the base of a waterfall is slightly warmer than at the top. Why?

A:

Q: When you step inside a warm ski lodge on a cold day, you find your eyeglasses fog. Why does this…

A: Due to condensation fog can be found on eyeglass.

Q: a 10 kg iron is dropped onto a sidewalk from a heigh of 100m. if half of the heat generated goes…

A:

Q: Why are mittens warmer than gloves on a cold day?

A: Gloves have larger surface area than the mittens since the gloves have individual fingers. This…

Q: A low emissivity glass has a higher LSG than a clear glass. Select one: True False

A: LSG for clear glass is ~0.87 And LSG for low emissivity glass is 1.29 1.29>0.87 It is clear from…

Q: Cite a primary difference between waves of solar radiation and waves of terrestrial radiation.

A: Solar radiation is the radiant energy produced by the Sun from nuclear fusion. Terrestrial radiation…

Q: What is the reason for the widespread use of fins on surfaces?

A: The phenomenon through which heat transfer from one body to another due to temperature difference is…

Q: The bulb of one thermometer is spherical while that of other is cylindrical. Both have equal amount…

A: The surface area of the cylindrical bulb will be more compared to the spherical bulb. Both the bulbs…

Q: Why is the front surface of a thermometer curved as shown?

A: The front surface of a thermometer is curved as it serves a magnifying effect due to the refraction…

Q: The heat from the Sun reaches and the Earth through empty space. This must mean the heat transfer…

A:

Ideal Gas Law

Ideal gas law states that the product of pressure and volume of a gas directly varies with the product of the number of moles, the universal gas constant, and the temperature of the gas.