Are firework show luminous?

Are firework show luminous?
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Is it possible to create a 3D firework show?

Description : Is it possible to create a 3D firework show?

Last Answer : I thought they already were. Are you talking about like an iMax 3D fireworks show?

If you grew up in the '50s and '60s what did you call the loud, cylindrical firework with the fuse coming out the side?

Description : If you grew up in the '50s and '60s what did you call the loud, cylindrical firework with the fuse coming out the side?

Last Answer : A ½ stick of Dynamite? haha

Is a firework safe just because it is considered ”sane”?

Description : Is a firework safe just because it is considered ”sane”?

Last Answer : I always thought ‘sane’ was a subjective term. I don’t think it’s possible to quantify sanity.

Brit Jellies: Will you be going to an organised firework display tonight, or hold your own in the garden?

Description : Brit Jellies: Will you be going to an organised firework display tonight, or hold your own in the garden?

Last Answer : If you answer this later, after your firework experience, then just tell us how you got on.

What will happen if you breathe in firework smoke?

Description : What will happen if you breathe in firework smoke?

Last Answer : You probably won’t die. If you feel lousy tomorrow, call your doctor.

What chemical changes happen when wax taper is used to light a firework?

Description : What chemical changes happen when wax taper is used to light a firework?

Last Answer : Feel Free to Answer

What would happen if the secondary fuse in the aerial firework was made too short?

Description : What would happen if the secondary fuse in the aerial firework was made too short?

Last Answer : Need answer

Why does a aerial firework require two explosions of black powder?

Description : Why does a aerial firework require two explosions of black powder?

Last Answer : to launch aerials and also causes the explosions necessary for special effects like noise or colored light.

Why is it hard to put out a firework once it has started?

Description : Why is it hard to put out a firework once it has started?

Last Answer : Need answer

The green colour seen in firework displays is due to the chloride salt of– (1) Sodium (2) Strontium (3) Barium (4) Calcium

Description : The green colour seen in firework displays is due to the chloride salt of– (1) Sodium (2) Strontium (3) Barium (4) Calcium

Last Answer : (3) Barium Explanation: The red, orange, yellow, green, blue and purple colors exploding in the night sky during a pyrotechnic festival are created by the use of metal salts. Barium chloride ... orange), sodium nitrate (yellow), barium chloride (green fireworks) and copper chloride (blue fireworks).

The green colour seen in firework displays is due to the chloride salt of : (1) Sodium (2) Strontium (3) Barium (4) Calcium

Description : The green colour seen in firework displays is due to the chloride salt of : (1) Sodium (2) Strontium (3) Barium (4) Calcium

Last Answer : Barium

What is the unit of luminous efficiency of an electric bulb? -Do You Know?

Description : What is the unit of luminous efficiency of an electric bulb? -Do You Know?

Last Answer : answer:

What is a luminous object ?

Description : What is a luminous object ?

Last Answer : Objects that do not have their own light or cannot emit light by themselves are called non-luminous objects.

Otp shows then disconnect's in zelio sine wave inverter luminous 1600va?

Description : Otp shows then disconnect's in zelio sine wave inverter luminous 1600va?

Last Answer : Need Answer

What is otp error code in my luminous Zelio+1100 inverter and what is solution for this?

Description : What is otp error code in my luminous Zelio+1100 inverter and what is solution for this?

Last Answer : Install a plastic window that can resist this air and once you do that make sure to check the information before getting in in your computer what do you want by phone

My luminous zelio 1700 is showing error "sct" and backup is not working?

Description : My luminous zelio 1700 is showing error "sct" and backup is not working?

Last Answer : Cbl code on your inverter is 'check output cable' indication. This is an error code for wrong output cable connection. If you find a Cbl code on your inverter display then you have to check the output cable connection. Don't run your inverter with wrong or loose connections.

My luminous inverter zelio 900VA showing error code Cbl what is this code for?

Description : My luminous inverter zelio 900VA showing error code Cbl what is this code for?

Last Answer : Cbl code on your inverter is 'check output cable' indication. This is an error code for wrong output cable connection. If you find a Cbl code on your inverter display then you have to check the output cable connection. Don't run your inverter with wrong or loose connections.

What is btp error code in luminous zelio inverter?

Description : What is btp error code in luminous zelio inverter?

Last Answer : The btp error code in inverters describes that the mains input MCB on the inverter is tripped so as to protect the device from a short circuit or lightening. During this error the inverter will be in ... cases btp error may even lead to a board complaint if the MCB couldn't protect the inverter.

Match the entries given in Column A with the appropriate ones in Column B. `{:("Column A","Column B"),(A."A plane mirror",(" ")a."Luminous source"),(B

Description : Match the entries given in Column A with the appropriate ones in Column B. `{:("Column A","Column B"),(A."A plane mirror",(" ")a."Luminous source"),(B

Last Answer : Match the entries given in Column A with the appropriate ones in Column B. `{:("Column A","Column B"), ... of light is maximum",(" ")h."Persicope"):}`

Read the following statements and choose the correct option. (A) Planets are not luminous bodies. (B) The sun is the nearest star to us from which the

Description : Read the following statements and choose the correct option. (A) Planets are not luminous bodies. (B) The sun is the nearest star to us from which the

Last Answer : Read the following statements and choose the correct option. (A) Planets are not luminous bodies. (B) The sun ... B are true D. Both A and B are false

A luminous object O is located at the bottom of a big pool of liquid of refractive index `mu` and depth h. The object O emits rays upwards in all dire

Description : A luminous object O is located at the bottom of a big pool of liquid of refractive index `mu` and depth h. The object O emits rays upwards in all dire

Last Answer : A luminous object O is located at the bottom of a big pool of liquid of refractive index `mu` ... Determine the radius and the area of the circle .

A frosted bulb which may be taken as an isotropic source, gives as illumination of `8lm//m^(2)` at a distance of 5m. Calculate (i) its luminous intens

Description : A frosted bulb which may be taken as an isotropic source, gives as illumination of `8lm//m^(2)` at a distance of 5m. Calculate (i) its luminous intens

Last Answer : A frosted bulb which may be taken as an isotropic source, gives as illumination of `8lm//m^(2)` ... and (ii) the total luminous flux from the blub.

Calculate the illuminance at a surface distance 0.5m from a ligth source of luminous intensity 200 cd, assuming normal incidence. If the area of the s

Description : Calculate the illuminance at a surface distance 0.5m from a ligth source of luminous intensity 200 cd, assuming normal incidence. If the area of the s

Last Answer : Calculate the illuminance at a surface distance 0.5m from a ligth source of luminous intensity 200 cd, ... , what is the luminous flux on this area ?

The luminous effeciency of a lamp is `51mW^(-1)` and its luminous intensity is 35 cd. Determine the power of the lamp.

Description : The luminous effeciency of a lamp is `51mW^(-1)` and its luminous intensity is 35 cd. Determine the power of the lamp.

Last Answer : The luminous effeciency of a lamp is `51mW^(-1)` and its luminous intensity is 35 cd. Determine the power of the lamp.

A 60W lamp is rated at 0.8 watt/candela. Calculate (i) luminous intensity of the lamp, (ii) luminous flux of the lamp, and (iii) illuminance at a dist

Description : A 60W lamp is rated at 0.8 watt/candela. Calculate (i) luminous intensity of the lamp, (ii) luminous flux of the lamp, and (iii) illuminance at a dist

Last Answer : A 60W lamp is rated at 0.8 watt/candela. Calculate (i) luminous intensity of the lamp, (ii) ... iii) illuminance at a distance of 2m from the lamp.

How can non luminous bodies be made luminous?

Description : How can non luminous bodies be made luminous?

Last Answer : by reflecting the light energy

In luminous flame the flame is produce when the air hole is open or close?

Description : In luminous flame the flame is produce when the air hole is open or close?

Last Answer : A bunsen burner (as used in a science lab or science classroom) will burn quietly, and a flickery yellow (like a wax candle) if the air hole is closed, or closed too much. If the air holes is opened, the flame will turn bluish and become noisy and hotter as more air mixes with the gas.

Is match a luminous object?

Description : Is match a luminous object?

Last Answer : yes

What happens to a nichrome wire in a non-luminous flame?

Description : What happens to a nichrome wire in a non-luminous flame?

Last Answer : The color of wire is unchanged.

Planets are (a) luminous bodies that twinkle (b) non-luminous bodies that twinkle (c) luminous bodies that do not twinkle (d) non-luminous bodies that do not twinkle

Description : Planets are (a) luminous bodies that twinkle (b) non-luminous bodies that twinkle (c) luminous bodies that do not twinkle (d) non-luminous bodies that do not twinkle

Last Answer : Ans:(d)

Planets 1. are luminous bodies 2. twinkle 3. are non-luminous bodies 4. do not twinkle Which of the above statements is/are correct? (a) 1 and 2 (b) 1 and 4 (c) 2 and 3 (d) 3 and 4

Description : Planets 1. are luminous bodies 2. twinkle 3. are non-luminous bodies 4. do not twinkle Which of the above statements is/are correct? (a) 1 and 2 (b) 1 and 4 (c) 2 and 3 (d) 3 and 4

Last Answer : Ans:(d)

Planets do not twinkle because they (a) emit light continuously (b) are luminous sources of light (c) are nearer to us and therefore their light does not pass through the atmosphere (d) are nearer to us and therefore minor variations in their intensity are not noticeable

Description : Planets do not twinkle because they (a) emit light continuously (b) are luminous sources of light (c) are nearer to us and therefore their light does not pass through the atmosphere (d) are nearer to us and therefore minor variations in their intensity are not noticeable

Last Answer : Ans:(d)

The hottest part of the gas flame is known as – (1) blue zone (2) non-luminous zone (3) luminous zone (4) dark zone

Description : The hottest part of the gas flame is known as – (1) blue zone (2) non-luminous zone (3) luminous zone (4) dark zone

Last Answer : (3) luminous zone

The SI unit of luminous emittance is - (1) Lux (2) Candela (3) Lumen (4) Lumen second

Description : The SI unit of luminous emittance is - (1) Lux (2) Candela (3) Lumen (4) Lumen second

Last Answer : (1) Lux Explanation: The lux is the SI unit of illuminance and luminous emittance, measuring luminous flux per unit area. It is equal to one lumen per square metre. In photometry, this is used as a ... of the intensity, as perceived by the human eye, of light that hits or passes through a surface.

Which zone of a candle flame is the hottest? (1) Dark innermost zone (2) Outermost zone (3) Middle luminous zone (4) Central zone

Description : Which zone of a candle flame is the hottest? (1) Dark innermost zone (2) Outermost zone (3) Middle luminous zone (4) Central zone

Last Answer : (3) Middle luminous zone Explanation: The outermost zone of the flame is blue in colour and it is the hottest part. The innermost zone is the least hot and black in colour.

SI unit of luminous intensity is ______. (1) lumen (2) lux (3) candela (4) watt

Description : SI unit of luminous intensity is ______. (1) lumen (2) lux (3) candela (4) watt

Last Answer : (3) candela Explanation: Luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle, based on the luminosity function, a ... the sensitivity of the human eye. The SI unit of luminous intensity is the candela (cd).

Lux is the SI unit of - (1) intensity of illumination (2) luminous efficiency (3) luminous flux (4) luminous intensity

Description : Lux is the SI unit of - (1) intensity of illumination (2) luminous efficiency (3) luminous flux (4) luminous intensity

Last Answer : (1) intensity of illumination Explanation: The SI unit of intensity of illumination (illuminance) is the lux. An illuminance of 1.0 lux is produced by 1.0 lumen of light shining on an area of 1.0 m2.

What is the unit of luminous efficiency of an electric bulb?

Description : What is the unit of luminous efficiency of an electric bulb?

Last Answer : Lumen / watt

Luminous efficiency is least for a A. mercury vapor lamp B. low-wattage light bulb C. high-wattage light bulb D. fluorescent tube

Description : Luminous efficiency is least for a A. mercury vapor lamp B. low-wattage light bulb C. high-wattage light bulb D. fluorescent tube

Last Answer : B. low-wattage light bulb

Candela is the basic unit of---------? A. luminous intensity (Answer) B. heat producing value C. Thermodynamic temperature

Description : Candela is the basic unit of---------? A. luminous intensity (Answer) B. heat producing value C. Thermodynamic temperature

Last Answer : A. luminous intensity (Answer)

Unit of luminous intensity is A. m B. kg C. cd D. mol

Description :  Unit of luminous intensity is A. m B. kg C. cd D. mol

Last Answer : . m

A sooty flame can be made non-luminous by (A) Admitting more gas (B) Shutting gas supply (C) Admitting more air (D) Shutting air supply

Description : A sooty flame can be made non-luminous by (A) Admitting more gas (B) Shutting gas supply (C) Admitting more air (D) Shutting air supply

Last Answer : (C) Admitting more air

Combustion of pulverised coal as compared to that of lump coal (A) Develops a non-luminous flame (B) Develops a low temperature flame (C) Can be done with less excess air (D) Provides a lower rate of heat release

Description : Combustion of pulverised coal as compared to that of lump coal (A) Develops a non-luminous flame (B) Develops a low temperature flame (C) Can be done with less excess air (D) Provides a lower rate of heat release

Last Answer : (C) Can be done with less excess ai

During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the (A) Incomplete combustion (B) Complete combustion (C) High oxygen in flue gas (D) None of these

Description : During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the (A) Incomplete combustion (B) Complete combustion (C) High oxygen in flue gas (D) None of these

Last Answer : (B) Complete combustion

Cannel coal (A) Is non-coking (B) Has a high volatile matter content and burns with a luminous smoky flame (C) Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named (D) All (A), (B) and (C

Description : Cannel coal (A) Is non-coking (B) Has a high volatile matter content and burns with a luminous smoky flame (C) Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named (D) All (A), (B) and (C

Last Answer : (D) All (A), (B) and (C

The hottest part of the flame lies in its _________zone. (A) Non-luminous (B) Luminous (C) Yellow (D) Unburnt gases

Description : The hottest part of the flame lies in its _________zone. (A) Non-luminous (B) Luminous (C) Yellow (D) Unburnt gases

Last Answer : (A) Non-luminous

Light intensity is generally described in terms of __________ and measured in _________. ∙ A. Luminous flux density; Lumens per unit area ∙ B. Luminous flux intensity; Lumens per unit area ∙ C. Luminous flux density; Lumens per unit volume ∙ D. Luminous flux intensity; Lumens per unit volume

Description : Light intensity is generally described in terms of __________ and measured in _________. ∙ A. Luminous flux density; Lumens per unit area ∙ B. Luminous flux intensity; Lumens per unit area ∙ C. Luminous flux density; Lumens per unit volume ∙ D. Luminous flux intensity; Lumens per unit volume

Last Answer : Luminous flux density; Lumens per unit area

We can see non luminous object ,when the light a) emitted by the object falls on the eye . b) is reflected from the object towards eye . c) completely passes through the object . d) gets completely absorbed by object .

Description : We can see non luminous object ,when the light a) emitted by the object falls on the eye . b) is reflected from the object towards eye . c) completely passes through the object . d) gets completely absorbed by object .

Last Answer : b) is reflected from the object towards eye .

The middle zone of a candle flame is known as the ________ zone. a) luminous b)non-luminous c)wax d)burning

Description : The middle zone of a candle flame is known as the ________ zone. a) luminous b)non-luminous c)wax d)burning

Last Answer : a) luminous

The effect of corona can be detected by (a) presence of ozone detected by odour (b) hissing sound (c) faint luminous glow of bluish colour (d) all of the above

Description : The effect of corona can be detected by (a) presence of ozone detected by odour (b) hissing sound (c) faint luminous glow of bluish colour (d) all of the above

Last Answer : (d) all of the above