Is an 800-lumen light bulb twice as bright as a 400-lumen one?

Last Answer : When you go out shopping for a new LCD TV, one of the most important things worth checking is the resolution. What's the use of an LCD when your neighbor's 20-year-old CRT has better resolution and colors? ... 1680 1050 (or WSXGA+) 24 (widescreen): 1920 1200 (or WUXGA+) 30 (widescreen): 2560 1600

LCD Display Modules

Description : LCD Display Modules

Last Answer : Replacing a damaged LCD monitor is no easy task. LCDs are expensive, and so are their parts or modules. Let's take a look at a notebook computer LCD, for example. If you go ... include matrix type, viewing angle, color support, brightness, contrast ratio, aspect ratio and input ports.

Industrial LCD Displays

Description : Industrial LCD Displays

Last Answer : Today, while the Internet has managed to steal the attention of millions of people worldwide, many still tend to turn to the TV for some good, old-fashioned quality entertainment. LCDs are in, CRT ... Some of the best manufacturers of industrial LCDs today are Viewsonic, Sony, Dell, LG and Samsung.

How to Clean an LCD Screen

Description : How to Clean an LCD Screen

Last Answer : How to Clean an LCD Screen Liquid crystal display screens, more known as LCD screens, is becoming more and more popular for its higher resolutions and space-saving dimensions. However, like all appliances ... touching the screen, regular cleaning of your LCD screen will keep it doing its job well.

Liquid Crystal Display (LCD) in embedded system

Last Answer : Liquid Crystal Display:-An LCD is a low-cost, low power device capable of displaying text and images. LCD's are extremely common in embedded systems since such system often does not have video monitors ... toggles the enables bit and acts as a delay so that the command can be processed and executed.

Liquid Crystal Display (LCD)

Description : Liquid Crystal Display (LCD)

Last Answer : Liquid Crystal Display (LCD) LCD stands for Liquid Crystal Display. It is a flat panel electronic display device which uses light modulating properties of liquid crystal. ... pixel and passive pixel display do not consist of switch at each pixel.

A cyclist riding a cycle fitted with a dynamo to a tyre gets bright light in the bulb connected, when he pedals fast. Why?

Description : A cyclist riding a cycle fitted with a dynamo to a tyre gets bright light in the bulb connected, when he pedals fast. Why?

Last Answer : More magnetic lines of force change with respect to the coil, leading to more current being produced.

How bright a bulb can I use?

Description : How bright a bulb can I use?

Last Answer : I’d think so, I have always used brighter bulbs in many lights, 100wt. in 40–60wt. lamps, etc. Never had an issue but I don’t leave them on for hours while gone or anything extreme. The LED lights out out less heat than the old standard bulbs so I think you could ramp up the wattage.

Why would an ordinary, white screw-in flourescent bulb start glowing entirely in a bright pinkish lavender color?

Description : Why would an ordinary, white screw-in flourescent bulb start glowing entirely in a bright pinkish lavender color?

Last Answer : answer:It’s gonna esplode!!! Actually I have no idea

Two bulbs of 100w and 40w respectively are connected in series across a 230v supply which bulb will glow bright and why?

Description : Two bulbs of 100w and 40w respectively are connected in series across a 230v supply which bulb will glow bright and why?

Last Answer : A:Since two bulbs are in series they will get equal amount of electrical current but as the supply voltage is constant across the bulb(P=V^2/R).So the resistance of 40W bulb is greater and voltage across 40W is more (V=IR) so 40W bulb will glow brighter.

Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

Description : Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

Last Answer : Since two bulbs are in series they will get equal amount of electrical current but as the supply voltage is constant across the Bulb (P=V^2/R).So the resistance of 40W bulb is greater and voltage across 40W is more (V=IR) so 40W bulb will glow brighter.

In photosynthesis, the light-independent reactions take place at (a) photosystem II (b) stromal matrix (c) thylakoid lumen (d) photosystem I

Description : In photosynthesis, the light-independent reactions take place at (a) photosystem II (b) stromal matrix (c) thylakoid lumen (d) photosystem I

Last Answer : (b) stromal matrix

Is there a firewire 400 to 800 adapter or converter for iMac?

Description : Is there a firewire 400 to 800 adapter or converter for iMac?

Last Answer : answer:@pamquestion Just get a 400 to 800 firewire adapter, the 800 is backwards compatible. Older devices will work with the new 800 ports on the computer with adapter cables.

I just purchased a firewire 800/400 cable, how do I transfer files from one computer to another?

Description : I just purchased a firewire 800/400 cable, how do I transfer files from one computer to another?

Last Answer : On the computer you want to copy FROM, launch Utilities/Migration Assistant, then follow the screen prompts.

If it is 1,800 kilometers to America, 1,200 kilometers to Japan, 2,400 kilometers to New Zealand, and 1,400 kilometers to Brazil- How far is Morocco? -Riddles

Description : If it is 1,800 kilometers to America, 1,200 kilometers to Japan, 2,400 kilometers to New Zealand, and 1,400 kilometers to Brazil- How far is Morocco? -Riddles

Last Answer : The answer is 1,700 kilometers, as vowels in the countries' names are worth 300 kilometers and the consonats are worth 200 kilometers.

400+400=800 is this good?

Description : 400+400=800 is this good?

Last Answer : yes, 400 + 400 is 800

Can I use the 400/800 GB LTO-3 Internal Tape Drive for a computer that is not a Dell?

Description : Can I use the 400/800 GB LTO-3 Internal Tape Drive for a computer that is not a Dell?

Last Answer : Yes any computer with available connections will work.

Minimum excretory urinary volume for waste products elimination during 24 hrs is (A) 200–300 ml (B) 200–400 ml (C) 500–600 ml (D) 800 ml

Description : Minimum excretory urinary volume for waste products elimination during 24 hrs is (A) 200–300 ml (B) 200–400 ml (C) 500–600 ml (D) 800 ml

Last Answer : Answer : C

The daily requirement of calcium is (A) 200 mg (B) 400 mg (C) 800 mg (D) 600 mg

Description : The daily requirement of calcium is (A) 200 mg (B) 400 mg (C) 800 mg (D) 600 mg

Last Answer : Answer : C

Daily requirement of phosphorous for an infant is (A) 240–400 mg (B) 1.2 gms (C) 800 mg (D) 800–1200 mg

Description : Daily requirement of phosphorous for an infant is (A) 240–400 mg (B) 1.2 gms (C) 800 mg (D) 800–1200 mg

Last Answer : Answer : A

The daily calcium requirement of an adult man is about (A) 400 mg (B) 600 mg (C) 800 mg (D) 1,000 mg

Description : The daily calcium requirement of an adult man is about (A) 400 mg (B) 600 mg (C) 800 mg (D) 1,000 mg

Last Answer : Answer : C

If the current ratio is 2, current assests are worth Rs. 1,600, if current ratio is not allowed to fall below 1•5, how much additional can be borrowed by the company on the short term basis ? (A) Rs. 400 (B) Rs. 600 (C) Rs. 2,733 (D) Rs. 800

Description : If the current ratio is 2, current assests are worth Rs. 1,600, if current ratio is not allowed to fall below 1•5, how much additional can be borrowed by the company on the short term basis ? (A) Rs. 400 (B) Rs. 600 (C) Rs. 2,733 (D) Rs. 800

Last Answer : Answer: Rs. 400

ECE Board Exam March 1996 What is the transmission rate of a system for transmitting the output of a microcomputer to a line printer operating at a speed of 30 lines/minute? Assume that the line printer has 8 bits of data per character and prints out 80 characters/line. A. 800 bps B. 400 bps C. 320 bps D. 640 bps

Description : ECE Board Exam March 1996 What is the transmission rate of a system for transmitting the output of a microcomputer to a line printer operating at a speed of 30 lines/minute? Assume that the line printer has 8 bits ... and prints out 80 characters/line. A. 800 bps B. 400 bps C. 320 bps D. 640 bps

Last Answer : C. 320 bps

A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time (A) t = 283 s (B) t = 356 s (C) t = 400 s (D) t = 800 s

Description : A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The ... = 283 s (B) t = 356 s (C) t = 400 s (D) t = 800 s

Last Answer : (D) t = 800 s

Disolved oxygen (DO) in water should be? A. 400 to 800 ppm B. 4000 to 8000 ppm C. 0.4 to 0.5 ppm D. 4 to 5 ppm (Answer)

Description : Disolved oxygen (DO) in water should be? A. 400 to 800 ppm B. 4000 to 8000 ppm C. 0.4 to 0.5 ppm D. 4 to 5 ppm (Answer)

Last Answer : D. 4 to 5 ppm (Answer)

The cutter bar of a tractor operated on owner makes strokes/min (a) 400 – 500 (b) 500 – 750 (c) 800 – 1200 (d) 1250 – 1500

Description : The cutter bar of a tractor operated on owner makes strokes/min (a) 400 – 500 (b) 500 – 750 (c) 800 – 1200 (d) 1250 – 1500

Last Answer : (c) 800 – 1200

Water requirement in Maize (a) 400-500mm (b) 600- 800 mm (c) 500- 800 mm (d) 600- 700 mm

Description : Water requirement in Maize (a) 400-500mm (b) 600- 800 mm (c) 500- 800 mm (d) 600- 700 mm

Last Answer : (c) 500- 800 mm

Number of meiotic divisions required to produce 200/400 seeds of pea would be (a) 200/400 (b) 400/800 (c) 300/600 (d) 250/500

Description : Number of meiotic divisions required to produce 200/400 seeds of pea would be (a) 200/400 (b) 400/800 (c) 300/600 (d) 250/500

Last Answer : (d) 250/500.

If the baudrate is400 for a QPSK signal, thebit rate is ________ bps. A) 100 B) 400 C) 800 D) 1600

Description : If the baudrate is400 for a QPSK signal, thebit rate is ________ bps. A) 100 B) 400 C) 800 D) 1600

Last Answer : 800

The cheapest modems cantransmit A. 300 bits per second B. 1,200 bitsper second C. 2,400 bits per second D. 4,800 bits per second E. None of the above

Description : The cheapest modems cantransmit A. 300 bits per second B. 1,200 bitsper second C. 2,400 bits per second D. 4,800 bits per second E. None of the above

Last Answer : 300 bits per second

Calorific value of gobar gas (containing CH4 = 60% , H2 = 10% ; CO2 = 30%) may be about __________ Kcal/Nm3 . (A) 1,800 (B) 3,200 (C) 5,400 (D) 10,200

Description : Calorific value of gobar gas (containing CH4 = 60% , H2 = 10% ; CO2 = 30%) may be about __________ Kcal/Nm3 . (A) 1,800 (B) 3,200 (C) 5,400 (D) 10,200

Last Answer : (C) 5,400

A device is sending out data at the rate of 2000 bps. How long does it take to send a file of 1,00,000 characters ? a. 50 b. 200 c. 400 d. 800

Description : A device is sending out data at the rate of 2000 bps. How long does it take to send a file of 1,00,000 characters ? a. 50 b. 200 c. 400 d. 800

Last Answer : c. 400

Four channels are multiplexed using TDM. If each channel sends 100 bytes/second and we multiplex 1 byte per channel, then the bit rate for the link is __________. a. 400 bps b. 800 bps c. 1600 bps d. 3200 bps

Description : Four channels are multiplexed using TDM. If each channel sends 100 bytes/second and we multiplex 1 byte per channel, then the bit rate for the link is __________. a. 400 bps b. 800 bps c. 1600 bps d. 3200 bps

Last Answer : d. 3200 bps

Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. (A) 50-80 (B) 250-400 (C) 1000-1200 (D) 800-900

Description : Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. (A) 50-80 (B) 250-400 (C) 1000-1200 (D) 800-900

Last Answer : (B) 250-400

Temperature attained in soldering of metals is about __________ °C. (A) 150-300 (B) 400-500 (C) 650-800 (D) 1000-1100

Description : Temperature attained in soldering of metals is about __________ °C. (A) 150-300 (B) 400-500 (C) 650-800 (D) 1000-1100

Last Answer : (A) 150-300

The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is (A) 200 kg/m3 (B) 400 kg/m3 (C) 600 kg/m3 (D) 800 kg/m

Description : The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is (A) 200 kg/m3 (B) 400 kg/m3 (C) 600 kg/m3 (D) 800 kg/m

Last Answer : Answer: Option D

The original cost of an equipment is Rs.10,000. Its salvage value at the end of its total useful life of five years is Rs. 1,000. Its book value at the end of two years of its useful life (as per straight line method of evaluation of depreciation) will be (A) Rs. 8,800 (B) Rs. 7,600 (C) Rs. 6,400 (D) Rs. 5,000

Description : The original cost of an equipment is Rs.10,000. Its salvage value at the end of its total useful life of five years is Rs. 1,000. Its book value at the end of two years of its useful life (as per straight line method of evaluation ... be (A) Rs. 8,800 (B) Rs. 7,600 (C) Rs. 6,400 (D) Rs. 5,000

Last Answer : (C) Rs. 6,400

One unit of electricity is equivalent to kcal heat units. a) 800 b) 860 c) 400 d) 680

Description : One unit of electricity is equivalent to kcal heat units. a) 800 b) 860 c) 400 d) 680

Last Answer : 860

32. One unit of electricity is equivalent to kcal heat units. a) 800 b) 860 c) 400 d) 680

Description : One unit of electricity is equivalent to kcal heat units. a) 800 b) 860 c) 400 d) 680

Last Answer : 860

One unit of electricity is equivalent to kcal heat units. c) 800 c) 400 d)860 d) 680

Description : One unit of electricity is equivalent to kcal heat units. c) 800 c) 400 d)860 d) 680

Last Answer : 860

114. One unit of electricity is equivalent to kcal heat units. a) 800 c) 400 b) 860 d) 680

Description : 114. One unit of electricity is equivalent to kcal heat units. a) 800 c) 400 b) 860 d) 680

Last Answer : 860

A 3% downgrade curve is followed by a 1% upgrade curve and rate of change of grade adopted is 0.1% per 20 m length. The length of the respective vertical curve is : (a) 800 m (b) 200 m (c) 100 m (d) 400 m

Description : A 3% downgrade curve is followed by a 1% upgrade curve and rate of change of grade adopted is 0.1% per 20 m length. The length of the respective vertical curve is : (a) 800 m (b) 200 m (c) 100 m (d) 400 m

Last Answer : (a) 800 m

Speed of the cutter bar in case of combine (grain) is (a)400-550 rpm (b) 500-800rpm (c)800-1000rpm (d) 1000-1200rpm

Description : Speed of the cutter bar in case of combine (grain) is (a)400-550 rpm (b) 500-800rpm (c)800-1000rpm (d) 1000-1200rpm

Last Answer : a)400-550 rpm

Speed of the cutter bar in case of combine (grain) is :- a) 400 – 550 rpm b) 500 – 800 rpm C) 800 - 1000 rpm d) 1000 – 1200 rpm

Description : Speed of the cutter bar in case of combine (grain) is :- a) 400 – 550 rpm b) 500 – 800 rpm C) 800 - 1000 rpm d) 1000 – 1200 rpm

Last Answer : a) 400 – 550 rpm

For protection of level crossing gate in an emergency on BG double line the Gateman should place one detonator at one place and 3 detonators at a subsequent place at a distance of ------- a) and------- meters respectively b) 400 meters in 800 meters c) 500 meters and 1000 meters d) 600 meters and 1200 meters* e) 800 meters in 1500 meters

Description : For protection of level crossing gate in an emergency on BG double line the Gateman should place one detonator at one place and 3 detonators at a subsequent place at a distance of ------- a) and------ ... c) 500 meters and 1000 meters d) 600 meters and 1200 meters* e) 800 meters in 1500 meters

Last Answer : d) 600 meters and 1200 meters*

Indication post for detonator should be provided at a distance of ---------meter and --------- meter for BG level crossing a) 400 meters in 800 meters b) 500 meters and 1200 meters c) 600 meters and 1200 meter * d)600 meters and 1000 meters

Description : Indication post for detonator should be provided at a distance of ---------meter and --------- meter for BG level crossing a) 400 meters in 800 meters b) 500 meters and 1200 meters c) 600 meters and 1200 meter * d)600 meters and 1000 meters

Last Answer : c) 600 meters and 1200 meter *

anonymous · Answer 1 · 2022-03-02T02:22:31+0000

A lumen is a measure of brightness. In America, incandescent bulbs used to be rated by “candlepower. ” The LED bulbs are much brighter, and are measured by “lumens.” The wattage is not as big a variable, as the brightness. There are conversions for candlepower to lumens online.

Is an 800-lumen light bulb twice as bright as a 400-lumen one?

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