Parabolic mirros are used in (1) Car headlights (2) Driving mirrors (3) Dentists mirros (4) Shaving mirros

Parabolic mirros are used in (1) Car headlights (2) Driving mirrors (3) Dentists mirros (4) Shaving mirros
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 Car headlights
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Parabolic mirros are used in – (1) Car headlights (2) Driving mirrors (3) Dentists mirros (4) Shaving mirros

Description : Parabolic mirros are used in – (1) Car headlights (2) Driving mirrors (3) Dentists mirros (4) Shaving mirros

Last Answer : (1) Car headlights Explanation: A parabolic reflector (mirror) transforms an incoming plane wave traveling along the axis into a spherical wave converging toward the focus. Since the principles of ... focus outward in a parallel beam, used in devices such as spotlights and car headlights.

10. Which kind of mirrors are used in the headlights of a motor-car and why? [Foreign] -Chemistry-10

Description : 10. Which kind of mirrors are used in the headlights of a motor-car and why? [Foreign] -Chemistry-10

Last Answer : Answer. Concave mirror, to get the parallel beam of light.

The type of mirrors used in the headlamp of cars is – (1) Parabolic concave (2) Plane (3) Spherical convex (4) Cylindrical concave

Description : The type of mirrors used in the headlamp of cars is – (1) Parabolic concave (2) Plane (3) Spherical convex (4) Cylindrical concave

Last Answer : (1) Parabolic concave Explanation: Curved mirror that reflects light from its inner surface, the curve being inward. It may be either circular or parabolic in section. A concave mirror converges parallel light ... is not too close to the mirror. A real image is formed at the point of convergence.

The type of mirrors used in the headlamp of cars is (1) parabolic concave (2) plane (3) spherical convex (4) cylindrical concave

Description : The type of mirrors used in the headlamp of cars is (1) parabolic concave (2) plane (3) spherical convex (4) cylindrical concave

Last Answer : parabolic concave

Shaving mirror is – (1) Convex (2) Concave (3) Plane (4) Parabolic

Description : Shaving mirror is – (1) Convex (2) Concave (3) Plane (4) Parabolic

Last Answer : (2) Concave Explanation: Concave mirrors are used in makeup or shaving mirrors. When shaving or applying makeup, a person holds the mirror close to her face. This allows him to see an enlarged image of him face, which is helpful for applying makeup or shaving correctly.

Shaving mirror is (1) Convex (2) Concave (3) Plane (4) Parabolic

Description : Shaving mirror is (1) Convex (2) Concave (3) Plane (4) Parabolic 

Last Answer : Concave

A man is driving in his car, there are no headlights or streetlights for him to see the road. But somehow, he saw an old lady crossing the street and stopped for her. How is this possible if there are no lights? -Riddles

Description : A man is driving in his car, there are no headlights or streetlights for him to see the road. But somehow, he saw an old lady crossing the street and stopped for her. How is this possible if there are no lights? -Riddles

Last Answer : It was daytime!!

When should the headlights be turned on while driving?

Description : When should the headlights be turned on while driving?

Last Answer : Whenever you finds that other vehicles or pedestrians having difficulty to see our car we should turn on the headlights. You must also consider turning on headlights when there is too much fog or ... it is raining. In case of emergencies headlight may help you in getting other driver's attention.

What would happen if you drove your car close to the speed of light and turned on the headlights? -Physics

Description : What would happen if you drove your car close to the speed of light and turned on the headlights? -Physics

Last Answer : Light in vacuum always travels at the same speed c, exactly 299,792,458 meters per second, no matter how it is created or in what frame it is observed. If you drove a car close to the speed ... space is much more feasible, but even then the sparse space dust starts to cause problems at such speeds.

When driving behind a large truck if you can not see the trucks two side mirrors you are?

Description : When driving behind a large truck if you can not see the trucks two side mirrors you are?

Last Answer : If your driving behind a big truck and you cant see their twomirrors it means they cant see you!

How many mirrors are used inside the car ?

Description : How many mirrors are used inside the car ?

Last Answer : A mirror is usually used inside the front of the car.

If I were in a space ship traveling at the speed of light and turned on my headlights what would happen?

Description : If I were in a space ship traveling at the speed of light and turned on my headlights what would happen?

Last Answer : Too bad I fit the stereotype of “girls suck at physics”....but I love the question!

The mirror used for the head light of a car is – (1) spherical concave (2) plane (3) cylindrical (4) parabolic concave

Description : The mirror used for the head light of a car is – (1) spherical concave (2) plane (3) cylindrical (4) parabolic concave

Last Answer : (4) parabolic concave Explanation: A parabolic (or paraboloid or paraboloidal) reflector(or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves.

Why do mirrors reverse things horizontally, but not vertically?

Description : Why do mirrors reverse things horizontally, but not vertically?

Last Answer : They don’t “reverse” anything, they just reflect back the light that bounces off of you. Imagine a beam of light bouncing off of your right hand, hitting the mirror, and then coming back to you.

Convex mirrors are used as a rear view mirror in motor cycles because (1) it forms real image (2) it forms erect (upright) image (3) it forms smaller image as compared with object (4) All of the above

Description : Convex mirrors are used as a rear view mirror in motor cycles because (1) it forms real image (2) it forms erect (upright) image (3) it forms smaller image as compared with object (4) All of the above

Last Answer : (3) it forms smaller image as compared with object Explanation: It is because image formed by an convex mirror is always virtual, erect and smaller than the object.

Rainbow is seen after rain because of hanging molecules of water which act as – (1) lenses (2) mirrors (2) prisms (4) slabs

Description : Rainbow is seen after rain because of hanging molecules of water which act as – (1) lenses (2) mirrors (2) prisms (4) slabs

Last Answer : (2) mirrors Explanation: In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. In a rainbow, raindrops in the air act as tiny prisms. Light enters the raindrop ... In the process, it is broken into a spectrum just like it is in a triangular glass prism.

In mirrors the back surface is coated with a thin layer of (1) Mercury (2) Silver (3) Red oxide (4) Silver nitrate

Description : In mirrors the back surface is coated with a thin layer of (1) Mercury (2) Silver (3) Red oxide (4) Silver nitrate

Last Answer : (2) Silver Explanation: In a spherical mirror, one of the two curved surfaces is coated with a thin layer of silver followed by a coating of red lead oxide paint. Thus, one side of the spherical minor is opaque and the other side is a highly polished reflecting surface.

A real image can be formed by which of the following single mirrors? w) a plane mirror x) a concave spherical mirror y) a convex spherical mirror

Description : A real image can be formed by which of the following single mirrors? w) a plane mirror x) a concave spherical mirror y) a convex spherical mirror

Last Answer : ANSWER: X -- A CONCAVE SPHERICAL MIRROR

Infrared rays are absorbed best by which one of the following. Is it: w) bodies of air x) white bodies with rough surfaces y) mirrors z) black bodies with rough surfaces

Description : Infrared rays are absorbed best by which one of the following. Is it: w) bodies of air x) white bodies with rough surfaces y) mirrors z) black bodies with rough surfaces

Last Answer : ANSWER: Z -- BLACK BODIES WITH ROUGH SURFACES

A virtual image can be formed by one or more of the following single mirrors? Identify them. w) plane mirror x) concave spherical mirror y) convex spherical mirror z) all of the above

Description : A virtual image can be formed by one or more of the following single mirrors? Identify them. w) plane mirror x) concave spherical mirror y) convex spherical mirror z) all of the above

Last Answer : ANSWER: Z -- ALL OF THE ABOVE (accept: A, B and C) 

Convex mirrors are used as a rear view mirror in motor cycles because (1) it forms real image (2) it forms erect (upright) image (3) it forms smaller image as compared with object (4) All of the above

Description : Convex mirrors are used as a rear view mirror in motor cycles because (1) it forms real image (2) it forms erect (upright) image (3) it forms smaller image as compared with object (4) All of the above

Last Answer : it forms smaller image as compared with object

In mirrors the back surface is coated with a thin layer of : (1) Mercury (2) Silver (3) Red oxide (4) Silver nitrate

Description : In mirrors the back surface is coated with a thin layer of : (1) Mercury (2) Silver (3) Red oxide (4) Silver nitrate

Last Answer : Silver

Rainbow is seen after rain because of hanging molecules of water which act as (1) lenses (2) mirrors (2) prisms (4) slabs

Description : Rainbow is seen after rain because of hanging molecules of water which act as (1) lenses (2) mirrors (2) prisms (4) slabs

Last Answer : mirrors

Approximately when did car makers stop using two headlights (and start using one with a high beam filament)?

Description : Approximately when did car makers stop using two headlights (and start using one with a high beam filament)?

Last Answer : I’m sure that I’ve seen late-model BMW and Chevy cars with separate high/low beam headlights. And I’ve seen models from the 1970s which had single-lamp assemblies with the high and low beam filaments built into the lamp, as you suggest.

Can plastic headlights on a car be cleared up?

Description : Can plastic headlights on a car be cleared up?

Last Answer : This should help. http://www.youtube.com/watch?v=gMwQpmY1_8M

One of my car headlights has become very dim. Possible causes?

Description : One of my car headlights has become very dim. Possible causes?

Last Answer : Check the wire connection, if it is stable, yup you need a new bulb!

A black dog stands in the middle of an intersecton in a town painted black. None of the street lights are working due to a power failure caused by a storm. A car with two broken headlights drives towards the dog but turns in time to avoid hitting him. How could the driver have seen the dog in time? -Riddles

Description : A black dog stands in the middle of an intersecton in a town painted black. None of the street lights are working due to a power failure caused by a storm. A car with two broken headlights drives ... turns in time to avoid hitting him. How could the driver have seen the dog in time? -Riddles

Last Answer : Who said this happened during the night?

The hair of shaving brush clings together when removed from water due to – (1) Surface tension (2) Viscosity (3) Elasticity (4) Friction

Description : The hair of shaving brush clings together when removed from water due to – (1) Surface tension (2) Viscosity (3) Elasticity (4) Friction

Last Answer : (1) Surface tension Explanation: Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. It is revealed, for example, in the floating of ... is caused by cohesion of similar molecules, and is responsible for many of the behaviors of liquids.

Heated car mirrors

Description : Is that a good thing? Do you use it? Does it make sense to take this into account when buying a new car?

Last Answer : I have it but I've never used it so I don't even know if it works.

Must have car rear view mirrors?

Description : Won't I get fined for it if I don't have them at the moment?

Last Answer : Rear view mirrors are mandatory and you will definitely get a fine. The driver is obliged to monitor the traffic in front of him, behind him and next to him. And adapt the ride to the given situation.

What inspired reflecting road lights to be invented? A. Car door reflecting mirrors B. The light a cat’s eyes gave off on a fence (Answer) C. Sun light on steel posts on road sides D. The sun light on the windshield

Description : What inspired reflecting road lights to be invented? A. Car door reflecting mirrors B. The light a cat’s eyes gave off on a fence (Answer) C. Sun light on steel posts on road sides D. The sun light on the windshield

Last Answer : B. The light a cat’s eyes gave off on a fence (Answer)

Would the shaving cream trick work for your car windows?

Description : Would the shaving cream trick work for your car windows?

Last Answer : I’ve never heard anything bad about RainX, especially not for glass. Glass is largely non-reactive.

Which type of mirror is used in the head lights of vehicles? (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) Parabolic mirror

Description : Which type of mirror is used in the head lights of vehicles? (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) Parabolic mirror

Last Answer : (2) Concave mirror Explanation: Car head lights have concave mirrors because it collects and focuses as much as possible of the light from the bulb and send it out as a fairly tight beam in one ... at the focal point. The reflected light is parallel and gives more visibility to the driver at night.

A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle? (1) Circle (2) Parabolic (3) Great circle (4) Hyper-parabolic

Description : A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle? (1) Circle (2) Parabolic (3) Great circle (4) Hyper-parabolic

Last Answer : (2) Parabolic Explanation: If a particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower then a parabolic path will be traversed by ... the point of projection and when it reaches the ground that point is called the point of impact.

Graph of potential energy against distance is A. curve B. parabolic C. hyperbolic D. straight line

Description : Graph of potential energy against distance is A. curve B. parabolic C. hyperbolic D. straight line

Last Answer : straight line

Which type of mirror is used in the head lights of vehicles ? (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) Parabolic mirror

Description : Which type of mirror is used in the head lights of vehicles ? (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) Parabolic mirror

Last Answer : Concave mirror

A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle ? (1) Circle (2) Parabolic (3) Great circle (4) Hyper–parabolic

Description : A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle ? (1) Circle (2) Parabolic (3) Great circle (4) Hyper–parabolic

Last Answer : Parabolic

Have you noticed the latest technique dentists are using now to increase income?

Description : Have you noticed the latest technique dentists are using now to increase income?

Last Answer : You have to be careful with dentists. There are some trustworthy ones out there though.

Are holistic dentists quacks or ahead of their time? I found one.

Description : Are holistic dentists quacks or ahead of their time? I found one.

Last Answer : What does a holistic dentist do for your teeth? In other words, I don’t understand the term although Ido know what holistic medicine is.

Are root canals and crowns the norm for dentists now?

Description : Are root canals and crowns the norm for dentists now?

Last Answer : answer:I've been lucky and had fillings done when the original diagnosis was a root canal. I guess when the dentist drilled away some of the decay he realized it wasn't as bad as he originally thought. ... , but to charge $800? Sheesh. You haven't been eating anymore of those hot peppers, have you?

Have you ever successfully negotiated fees at a dentist? Are a dentist's fees negotiable?

Description : Have you ever successfully negotiated fees at a dentist? Are a dentist's fees negotiable?

Last Answer : Not at all a ridiculous request. A lot of them have payment plans, others have sliding scales, some have both, some don’t have either. But it’s definitely not a ridiculous request, and no one will think you strange for asking.

What is your "horror" story for why you are afraid of Dr.s, Dentists, etc.?

Description : What is your "horror" story for why you are afraid of Dr.s, Dentists, etc.?

Last Answer : I don’t have my own horror story but I was watching true life on MTV recently and one of the people on the show was having his wisdom teeth removed. Something went wrong causing him to go into a coma for 3 months and wake up blind with impaired hearing and speech…

Dentists: How comfortable do they make you?

Description : Dentists: How comfortable do they make you?

Last Answer : At the office I went to in FL they had TV’s hanging from the ceiling.

From your experience, do dentists vary in performing painless procedures?

Description : From your experience, do dentists vary in performing painless procedures?

Last Answer : The dentist that I now use is very good. He hires dental assistants for cleaning who are very professional, and the work he does directly is mostly pain free. However, his fees are above the so-called customary for our area so our insurance doesn’t pay in full, but it’s well worth the extra.

Blisters in the corners of my mouth/lips and dentists...query?

Description : Blisters in the corners of my mouth/lips and dentists...query?

Last Answer : When I’ve gotten impressions or dental work that has taken a while I’ve gotten REALLY mild blisters the next day or so….yours seem a lot worse, but I would assume they’ll go away…

What flavour flouride do you choose at the dentist's?

Description : What flavour flouride do you choose at the dentist's?

Last Answer : Pina colada or cinnamon. Depending on my mood :)

What do dentists do if a patient needs a tooth implant and they are allergic to all metals?

Description : What do dentists do if a patient needs a tooth implant and they are allergic to all metals?

Last Answer : Hmm…you might be better off going with a bridge instead. I did that, but only because I’m terrified of the idea of implants. (shudder)

How do I keep myself calm in the dentist's chair?

Description : How do I keep myself calm in the dentist's chair?

Last Answer : excrutiatingly

What do they do with your dental x-rays when you change dentists?

Description : What do they do with your dental x-rays when you change dentists?

Last Answer : Keep them in Record.

Where can I find Smile Makeover | Dentists & Doctors | Geelong Medical & Dentistry?

Description : Where can I find Smile Makeover | Dentists & Doctors | Geelong Medical & Dentistry?

Last Answer : Dentists & Doctors are highly experienced in Cosmetic Dentistry and provide a complete smile makeover, personalized to each individual! Call 035221 9129!