Reflector mirrors employed for exploiting solar energy are called the 

(1) Mantle (2) Heliostats (3) Diffusers (4) Ponds

1 Answer

Answer :

Reflector mirrors employed for exploiting solar energy are called the Heliostats

Related questions

Description : How does Solar Energy Work?

Last Answer : How does Solar Energy Work? The world is facing an energy crisis. Energy resources such as oil and coal not only continue to cost more, but when burned contribute to polluting the ... energy will be a viable economic alternative to fossil fuels for producing energy for homes and businesses.

Description : Explain the importance of solar power in the energy deficient India.

Last Answer : Mainly electricity generated in India is from -  Hydro power plant  Thermal power plant  Nuclear power plant  BUT,  To construct new Hydro power plant following are problem :- 1. There is ... start) 10. It saves the fossil fuel (coal, diesel, oil etc.) which are limited available.

Description : Explain with schematic diagram direct distribution of solar energy.

Last Answer : Explain with schematic diagram direct distribution of solar energy: Solar energy reaching earth's surface consists of two components: i) Direct solar energy, ii) Diffused solar energy. Direct solar energy ... radiation. It is very intense radiation and it can produce sun burns and shadows.

Description : What are the advantages and disadvantages of solar energy?

Last Answer : Free of costRenewable energyInextable solar energyLow energy densityHigh capital costMaintenance cost highDepends on weatherNeed to direction tracking

Description : What are the disadvantages of using solar energy?

Last Answer : High installation costEnergy density is depend on weatherSo it is low Not suitable in all areasMaintenance cost high

Description : What is the Difference between Refractor and Reflector Telescopes?

Last Answer : What is the Difference between Refractor and Reflector Telescopes? Introduction Since humans have lived on earth, they have looked to the evening skies in awe. Although Galileo Galilei did not build the ... consider the type of astronomical observation you will be doing, as well what you can afford.

Description : Explain the purpose of shielding and reflector in a nuclear reactor.

Last Answer : 1. Shielding:-  The function of sheilding is to protect environment, humens and animals from the harmful radioactive radiation (pollution).before they are emitted to atmosphere. Shilding is provided to ... :- The function of reflector is to reflect back the neutrons which are leaving from core.

Description : A 500 W bulb fitted with a reflector illuminates an area of 2 m x 2 m with an average illumination of 500 lux. The efficiency of the reflector is 50%. The efficiency of the bulb in lumens/watt is : 

Last Answer : A 500 W bulb fitted with a reflector illuminates an area of 2 m x 2 m with an average illumination of 500 lux. The efficiency of the reflector is 50%. The efficiency of the bulb in lumens/watt is : 8

Description : Why do "fog-free" shower mirrors inevitably fog up after a few months?

Last Answer : I have one and I use a an anti fog spray I got at auto store, works great

Description : How to wash mirrors and glass streak-free?

Last Answer : Dirty and stained window panes, mirrors on the walls and home furniture cause unpleasant feelings not only among guests, but also among the owners of the home. Attempts to wash all transparent and ... without streaks. Choose any of them to your taste, and let the house sparkle with cleanliness!

Description : Explain magnetic effect employed in measuring instrument.

Last Answer : Magnetic Effect:  I) In PMMC meters:  ➢ When a current is passed through a conductor, magnetic field is produced round the conductor. Due to this field when current ... field it experiences a mechanical force.  Examples: Electrodynamometer type instruments, Induction type instrument. 

Description : List any four effects employed in measuring instruments.

Last Answer : Effects Employed in Measuring Instruments: 1. Magnetic Effect 2. Electromagnetic induction 3. Heating effect 4. Electrostatic effect 5. Hall Effect 

Last Answer : In A.C. series motor compensating winding is employed to reduce sparking at the brushes.

Last Answer : Oil switches are employed for high voltages and large currents circuits.

Description : Do you get back what you give?

Last Answer : Good article! I know it’s going to sound like I’m patting myself on the back, but I do really try to smile and speak to everyone I pass at my job. I work in a hospital, so there is a lot of pain and grief. I want to try to give a smile to everyone.

Description : How to Make a Solar Oven

Last Answer : Conventional ovens, although reliable, are expensive and contribute heavily to your electric bill. Gas ranges, on the other hand, are slightly more convenient, although the price of gas has increased through the ... , with a solar oven, you're just a ray of sunshine away from another luscious meal.

Description : How to Build a Solar Oven

Last Answer : How to Build a Solar Oven Introduction What often comes to mind when you think of solar power? You may think of massive arrays of solar panels that are used to harness the energy from the sun. You could ... can use a stick, a rock or some other object to prop open the lid to the proper position.

Description : How to Build a Solar Furnace

Last Answer : How to Build a Solar Furnace How to Build a Solar Furnace Solar furnaces are actually made up of something known as silicon, the same substance that makes silica or sand. The funny part is that ... not rust like iron. So the entire structure of the furnace is built to last for several years.

Description : How Do Solar Yard Lights Work?

Last Answer : How Do Solar Yard Lights Work? Solar yard lights have become extremely popular over the last several years as more and more people switch from traditional yard lighting to solar. While traditional yard ... local and state governments who now use this technology for street and park lighting as well.

Description : SOLAR SYSTEM FACTS

Last Answer : There are tons of asteroids in our solar system. One of them, Asteroid 243 Ida, even has it's own moon. One of the moons of Saturn, called Mimas, is heavily cratered. This creates an odd appearance ... our solar system, the sun still accounts for 99.8 percent of the total mass of our solar system.

Description : Photocell and solar cell difference?

Last Answer : A photo cell is a light dependent resistor which decreases it resistance high intensity of light and is used to automatically control lights etc where as a solar cell solar or light energy into electrical energy.

Description : Why solar system is preferred now a days ? Justify your answer. 

Last Answer : Since availability of fossil fuels like coal are limited in future so there is more importance of solar power in the energy deficient because of following advantages of solar power Fuel is ... .  10. solar system technology are ideally suited to distributed applications ( Decentralized system)

Description : State the types of solar collector and explain any one. 

Last Answer : Types of solar collector:  1. Flat Plate type collectors :- a) Flat plate collectors (FPC) b). Evacuated Tubular collector (ETC)  2. Concentrating type collectors (focusing ... to north direction because there is more solar energy in this direction than the East-West arrangement.  

Description : Explain the characteristics of solar cell.  

Last Answer : Characteristics of solar cell : Explanation :- Solar cells produce direct current ( DC ) electricity and current times voltage equals power, so we can create solar cell I-V curves representing ... system so that it can operate as close to its optimal peak power point (MPP) as possible.

Description : With a neat diagram explain solar photovoltaic power plant. 

Last Answer : Diagram of solar photovoltaic power plant :  Explanation:  Solar power plant consists of following components:  1. Photovoltaic cell panel: Its function is to convert sunrays directly into DC ... .  5. Step-up transformer: It step-up input voltage to utilization voltage e.g. 230V

Last Answer : Diagram explain solar power tower : All concentrating solar thermal power (STP) basic elements: Concentrator Receiver Transport-storage (a portion of the thermal energy ... with alternator which converts mechanical power to electrical energy Exhaust steam is condensate in condenser

Last Answer : Because of following advantages concentrating type collector are used in solar power plant: -  1. Temperature: Temperature obtained is high because absorber area is less and collector/reflector area ... results: As tracking system is used better results are obtain than flat type collector.

Description : Classify the solar collectors and compare them. 

Last Answer : Classification of solar collectors :-  1. There are two main types of Flat Plate type collectors :- a) Flat plate collectors (FPC) b). Evacuated Tubular collector (ETC)  2. Concentrating ... directly from water Can be used to generate electricity with the help of steam turbine

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

Last Answer : i) Diffuse radiation: It is the solar radiation which is scattered by the particles in earth's atmosphere and this radiation does not have any unique direction.  ii) Beam radiation: Solar radiation ... from the sun.  OR  It is the average radiation received outside the earth's atmosphere

Description : State the principle of solar cell. What is necessity of series and parallel connection of solar cells.

Last Answer : Principle of solar cell:-  Working:- Solar cell operates on principle of Photo-voltaic effect Solar cell works in following steps:  The solar cell is composed of a P-type ... of Voltage & Current rating it is necessity of connecting series and parallel connection of solar cells.

Description : Define the term solar constant.

Last Answer : Solar energy arrived atmosphere at a constant rate of 1350W/M²

Description : A solar pond is a combination of :  (A) Solar energy storage and heat collection  (B) Solar energy collection and heat storage  (C) Solar energy collection and energy storage  (D) All the above

Last Answer : A solar pond is a combination of : Solar energy collection and heat storage

Last Answer : Igbt alone cant convert dc to ac. igbt half bridge or full bridge or three phase topology could be used to convert dc to ac. also igbt gates should be driven by microcontroller or pwm/spwm gate driving signals ... e4(-) and g4 c2e1 and c4e3 pins are AC output pins. its name is igbt inverter.

Description : Which of the following is an energy security measure? a) fully exploiting domestic energy resources b) diversifying energy supply source c) substitution of imported fuels for domestic fuels to the extent possible d) all of the above

Last Answer : d) all of the above

Description : If a house has solar panels and all energy is free, then is it ok to leave the lights on?

Last Answer : I think it would be wise to not waste any energy whether it's free or paid. Every electronic item has a limited working lifespan, if you were to run it all the time, it's gonna break very soon. Aside ... then the short answer is Yes . You can waste as much as you want since you own this energy.

Description : Alternative energy - why not an executive order that every new construction have solar panels?

Last Answer : I’d be down for that.

Description : What is the most efficient solar electrical energy generator?

Last Answer : Solar thermal energy technology is more efficient than photovoltaics. So when you want to heat water it's not a good idea to use electricity generated by photovoltaics. If you want to use a ... heated oil also at night. This technology has been proposed for the Desertec project in the Sahara.

Description : Write how energy can be stored or generated in each of following : i) solar cell ii) geothermal energy iii) hydrogen energy in biomass.

Last Answer : i) Solar cell : Energy can be stored:  1. Storage Battery is used to store electricity.  OR   Energy can be generated  1. Directly Conversion:   a) By use of P.V Cell ( ... fuels in engines:-  3. The biomass is subjected to fermentation process to obtain a gaseous fuel called biomass

Description : Does anyone have experience with solar panels and putting them together?

Last Answer : answer:Those aren't broken pieces of solar panels. They're just small solar panels and they're all soldered together. Solar panels are give out direct current. So you can connect them up just like ... on whether you want to make a bigger voltage or bigger current. This video explains in more detail

Description : Explain construction and working of solar water heater.

Last Answer : Solar Water Heater  Construction A typical domestic solar water heater consists of a hot water storage tank and one or more flat plate collectors. Inlet and outlet pipes are connected ... the tank continues automatically due to density difference between hot and cold water (thermosyphon effect).

Description : Convex mirror is generally used in - (1) solar cookers (2) opthalmoscope (3) reflector for head light (4) rear view mirror

Last Answer : (4) rear view mirror Explanation: Rear view mirrors of carsare convex mirrors as they enable the driver to see a wide area of the road behind the car. The convex mirror makes the rays of ... if they were coming from its focus, thereby produdcing a diminished virtual image which the driver can see.

Description : Is the energy crisis real?

Last Answer : Who is calling it a crisis? We have plenty of energy here in the US. OPEC has been aggrresive at limiting supply and raising prices.

Description : What branch of science does research into tachyon energy computing ?

Last Answer : Right after we reach “the speed of light”. We are close, to speed of light, with the Large Hadron Collider.

Description : Is it possible to convert infrared energy into electricity?

Last Answer : Silicon solar cells can convert the shorter wavelengths of IR to electricity: https://www.solarquotes.com.au/blog/uv-solar-panels/ You can also concentrate solar IR and use the ... .com/innovationtoronto.com/wp-content/uploads/2015/12/Solar-Thermal-Power-Plant_forcetoknow.com_.jpg?resize=627%2C221

Description : Which takes less energy?

Last Answer : Send this Q to LuckyGuy!

Description : Have they successfully converted energy to mass?

Last Answer : They?

Description : How do you feel about the expansion of nuclear power as a zero CO2 emission energy alternative?

Last Answer : In general I am in favor of the newer Gen 3 and the future Gen 4 designs. Gen 1 and 2 now in the field are fossils. Yes, there is nuclear waste that we don'[t know how to handle ... never become the utopian Hydrogen society and nuclear waste will continue to fester for tens of thousands of years.

Description : What to do if you feel that there is no energy to do something?

Last Answer : Lying down without sleeping. Shorter power naps. Meditation. Changing your life situation so you aren’t upset about it. Taking breaks and stepping outside. Changing/improving your work location (lighting, noise, distractions, air quality). Various other personal developmental approaches.

Description : Why do we relate the square of the speed of light in energy?

Last Answer : You’re squaring the speed at which light travels, not light itself.

Description : How can I figure out how much energy a hummingbird expends while hovering?

Last Answer : answer:I don’t know all the formulas, but the approach to solving it is lift = load Since F= mA, and m = mass of a hummingbird and A = acceleration of gravity (32ft/sec/sec), the lift energy must be equal to the load force.