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

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

1 Answer

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 rays inward to the point of principal focus. The image formed by a concave mirror is real (reduced and inverted) if the object is not too close to the mirror. A real image is formed at the point of convergence.
by
selected

Related questions

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

The type of mirror used in the headlamps of cars is the (a) plane mirror (b) spherical convex mirror (c) spherical concave mirror (d) parabolic concave mirror

Description : The type of mirror used in the headlamps of cars is the (a) plane mirror (b) spherical convex mirror (c) spherical concave mirror (d) parabolic concave mirror

Last Answer : Ans:(d)

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

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) 

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.

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.

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

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

You want to put up a mirror at a blind corner in a building. Which of the following will give you the largest field of view? Is it a: w) convex mirror x) concave mirror y) cylindrical mirror z) plane mirror

Description : You want to put up a mirror at a blind corner in a building. Which of the following will give you the largest field of view? Is it a: w) convex mirror x) concave mirror y) cylindrical mirror z) plane mirror

Last Answer : ANSWER: W -- CONVEX MIRROR

A boy is standing in front of and close to a special mirror. He finds the image of his head bigger than normal, the middle part of his body of the same size, and his legs smaller than normal. The special mirror is made up of three types of mirrors in the following order from top downwards: (a) Convex, Plane, Concave (b) Plane, Convex, Concave (c) Concave, Plane, Convex (d) Convex, Concave, Plan

Description : A boy is standing in front of and close to a special mirror. He finds the image of his head bigger than normal, the middle part of his body of the same size, and his legs smaller than normal. The ... , Plane, Concave (b) Plane, Convex, Concave (c) Concave, Plane, Convex (d) Convex, Concave, Plan

Last Answer : (c) Concave, Plane, Convex

For the rear view, motorists use (a) plane mirror (b) concave mirror (c) convex mirror (d) cylindrical mirror

Description : For the rear view, motorists use (a) plane mirror (b) concave mirror (c) convex mirror (d) cylindrical mirror

Last Answer : Ans:(c)

What type of lens is used to correct vision of a person suffering from Myopia? (1) Convex lens (2) Concave lens (3) Crossed lens (4) Cylindrical lens

Description : What type of lens is used to correct vision of a person suffering from Myopia? (1) Convex lens (2) Concave lens (3) Crossed lens (4) Cylindrical lens

Last Answer : (2) Concave lens Explanation: Near-sightedness, also known as short-sightedness and myopia, is a condition of the eye where light focuses in front of, instead of on, the retina. This causes distant objects to be blurry while close objects appear normal.

What type of lens is used to correct vision of a person suffering from Myopia? (1) Convex lens (2) Concave lens (3) Crossed lens (4) Cylindrical lens

Description : What type of lens is used to correct vision of a person suffering from Myopia? (1) Convex lens (2) Concave lens (3) Crossed lens (4) Cylindrical lens

Last Answer :  Concave lens

Which among the following lens is used to correct Presbyopia? (1) Concave (2) Convex (3) Cylindrical (4) Bifocal

Description : Which among the following lens is used to correct Presbyopia? (1) Concave (2) Convex (3) Cylindrical (4) Bifocal

Last Answer : (4) Bifocal Explanation: Presbyopia is a condition associated with aging of the eye those results in progressively worsening ability to focus clearly on close objects. By far the most common treatment 4 for presbyopia is bifocal or pro gressive lens eyeglasses.

Magnifying Glass is basically a – (1) Plano-concave lens (2) Concave lens (3) Convex lens (4) Cylindrical lens

Description : Magnifying Glass is basically a – (1) Plano-concave lens (2) Concave lens (3) Convex lens (4) Cylindrical lens

Last Answer : (3) Convex lens Explanation: A magnifying glass is a convex lens that is used to produce a magnified image of an object. The magnification of a magnifying glass depends upon where it is placed between the user's eye and the object being viewed, and the total distance between them.

`Short-sight' in human eye can be corrected by using proper – (1) convex lens (2) concave lens (3) cylindrical lens (4) bifocal lens

Description : `Short-sight' in human eye can be corrected by using proper – (1) convex lens (2) concave lens (3) cylindrical lens (4) bifocal lens

Last Answer : (2) concave lens Explanation: Scintillation or twinkling is generic terms for variations in apparent brightness or position of a distant luminous object viewed through a medium. If ... is termed astronomical scintillation; within the atmosphere, the phenomenon is termed terrestrial scintillation.

Which one of the following lenses should be used to correct the defect of astigmatism? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens

Description : Which one of the following lenses should be used to correct the defect of astigmatism? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens

Last Answer : (1) Cylindrical lens Explanation: Astigmatism is an optical defect in which vision is blurred due to the inability of the optics of the eye to focus a point object into a sharp focused image ... lens, and cannot be corrected by standard spectacle lenses, but can be corrected by contact lenses.

Which one of the following is used to remove Astigmatism for a human eye? (1) Concave lens (2) Convex lens (3) Cylindrical lens (4) Prismatic lens

Description : Which one of the following is used to remove Astigmatism for a human eye? (1) Concave lens (2) Convex lens (3) Cylindrical lens (4) Prismatic lens

Last Answer : (3) Cylindrical lens Explanation: A cylindrical lens is a lens which focuses light into a line instead of a point, as a spherical lens would.

Hyperrnetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses

Description : Hyperrnetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses

Last Answer : (4) Convex lenses Explanation: It can be corrected with convex lenses in eyeglasses or contact lenses. Convex lenses have a positive dioptric value, which causes the light to focus closer than its normal range.

Magnifying Glass is basically a (1) Plano-concave lens (2) Concave lens (3) Convex lens (4) Cylindrical lens

Description : Magnifying Glass is basically a (1) Plano-concave lens (2) Concave lens (3) Convex lens (4) Cylindrical lens

Last Answer :  Convex lens

Hypermetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses

Description : Hypermetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses

Last Answer : Convex lenses

Which one of the following lenses should be used to correct the defect of astigmatism ? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens

Description : Which one of the following lenses should be used to correct the defect of astigmatism ? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens

Last Answer : Cylindrical lens

‘Short-sight’ in human eye can be corrected by using proper (1) convex lens (2) concave lens (3) cylindrical lens (4) bifocal lens

Description : ‘Short-sight’ in human eye can be corrected by using proper (1) convex lens (2) concave lens (3) cylindrical lens (4) bifocal lens

Last Answer : concave lens

If you look into a mirror and find that the image (your reflexion) is smaller than you, then the type of the mirror is - (1) plano-concave mirror (2) concave mirror (3) plane mirror (4) convex mirror

Description : If you look into a mirror and find that the image (your reflexion) is smaller than you, then the type of the mirror is - (1) plano-concave mirror (2) concave mirror (3) plane mirror (4) convex mirror

Last Answer : (4) convex mirror Explanation: A convex mirror, diverging mirror, or fish eye mirror is a curved mirror in which the reflective surface bulges toward the light source. Such mirrors always form a virtual image and the image is smaller than the object.

The type of minor used in automobiles to see the traffic on the rear side is – (1) Concave (2) Plano-Convex (3) Plane (4) Convex

Description : The type of minor used in automobiles to see the traffic on the rear side is – (1) Concave (2) Plano-Convex (3) Plane (4) Convex

Last Answer : (4) Convex Explanation: Convex mirrors are used as rear view mirrors in automobiles to see the traffic on the rear side. A convex mirror always produces an erect image of the objects. The image formed in ... the object, due to which a convex mirror gives a wide field of view of the traffic behind.

The type of mirror used in automobiles to see the traffic on the rear side is (1) Concave (2) Plano-Convex (3) Plane (4) Convex

Description : The type of mirror used in automobiles to see the traffic on the rear side is (1) Concave (2) Plano-Convex (3) Plane (4) Convex

Last Answer : Convex

Which one of the following is used to remove Astigmatism for a human eye? (1) Concave lens (2) Convex lens (3) Cylindrical lens (4) Prismatic lens

Description : Which one of the following is used to remove Astigmatism for a human eye? (1) Concave lens (2) Convex lens (3) Cylindrical lens (4) Prismatic lens

Last Answer : (3) Cylindrical lens Explanation: In Astigmatism, eye cannot see objects in two orthogonal directions clearly simultaneously. This abnormality is removed by using cylindrical lens.

The lens used in a simple microscope is------? A. Concave B. Convex (Answer) C. Cylindrical D. None

Description : The lens used in a simple microscope is------? A. Concave B. Convex (Answer) C. Cylindrical D. None

Last Answer : B. Convex (Answer)

Myopia is a defect of Human eye. it can be corrected by using a lens called? A. Convex lens B. Concave lens (Answer) C. Cylindrical lens D. Plano convex lens E. None of these

Description : Myopia is a defect of Human eye. it can be corrected by using a lens called? A. Convex lens B. Concave lens (Answer) C. Cylindrical lens D. Plano convex lens E. None of these

Last Answer : B. Concave lens (Answer)

The mirror used by ENT specialist is: (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) None of these

Description : The mirror used by ENT specialist is: (1) Plane mirror (2) Concave mirror (3) Convex mirror (4) None of these

Last Answer : (2) Concave mirror Explanation: To see the inner part of ear and other parts, E.N.T doctors use a concave mirror. When the rays of light falls on reflecting surface of concave mirror, that time Concave mirror concentrate those all the rays at its focus.

By which one of the following can a real image be produced? Can it be produced by a: w) concave mirror x) plane mirror y) diverging lens z) convex mirror

Description : By which one of the following can a real image be produced? Can it be produced by a: w) concave mirror x) plane mirror y) diverging lens z) convex mirror

Last Answer : ANSWER: W -- CONCAVE MIRROR

The head mirror used by ENT doctors is (1) Concave (2) Convex (3) Plane (4) Plano-convex

Description : The head mirror used by ENT doctors is (1) Concave (2) Convex (3) Plane (4) Plano-convex 

Last Answer : Concave

Pick up the correct statement from the following: (A) Spherical aberration may be reduced by diminishing the aperture (B) Spherical aberration may be minimised by replacing the single lens by a combination of the lenses (C) In telescope objectives, a combination of convex lens and concave lens is used (D) All the above

Description : Pick up the correct statement from the following: (A) Spherical aberration may be reduced by diminishing the aperture (B) Spherical aberration may be minimised by replacing the single lens by a ... telescope objectives, a combination of convex lens and concave lens is used (D) All the above

Last Answer : (D) All the above

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.

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 :  Car headlights

What type of mirror is used by motorists to see the road behind them? (a) Convex (b) Concave (c) Plane (d) Concave-convex

Description : What type of mirror is used by motorists to see the road behind them? (a) Convex (b) Concave (c) Plane (d) Concave-convex

Last Answer : Ans:(a)

What type of mirror can be used to obtain the real image of an object? (a) Plane mirror (b) Concave mirror (c) Convex mirror (d) No mirror can produce a real image

Description : What type of mirror can be used to obtain the real image of an object? (a) Plane mirror (b) Concave mirror (c) Convex mirror (d) No mirror can produce a real image

Last Answer : Ans:(b)

A dentist’s mirror is a (a) cylindrical mirror (b) plane mirror (c) none of these (d) concave mirror

Description : A dentist’s mirror is a (a) cylindrical mirror (b) plane mirror (c) none of these (d) concave mirror

Last Answer : Ans:(d)

In Fraunhofer diffraction, the incident wave front should be ….. A. elliptical B. Plane C. Spherical D. Cylindrical

Description : In Fraunhofer diffraction, the incident wave front should be ….. A. elliptical B. Plane C. Spherical D. Cylindrical

Last Answer : B. Plane

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.

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

Which one of the following can be used to focus sunlight? A. Plane mirror B. Concave lens C. Concave mirror D. Convex mirror

Description : Which one of the following can be used to focus sunlight? A. Plane mirror B. Concave lens C. Concave mirror D. Convex mirror

Last Answer : ANSWER: C

The rear view mirror of a motor vehicle is _____ A. Concave B. Plane C. Convex D. Biconcave

Description : The rear view mirror of a motor vehicle is _____ A. Concave B. Plane C. Convex D. Biconcave

Last Answer : ANSWER: C

Which of the following can be used as a burning glass? (a) Plane mirror (b) Convex mirror (c) Concave lens (d) Concave mirror

Description : Which of the following can be used as a burning glass? (a) Plane mirror (b) Convex mirror (c) Concave lens (d) Concave mirror

Last Answer : Ans:(d)

The rear view mirror of a motor vehicle is ----? A. Concave B. Plane C. Convex (Answer) D. Biconcave

Description : The rear view mirror of a motor vehicle is ----? A. Concave B. Plane C. Convex (Answer) D. Biconcave

Last Answer : C. Convex (Answer)

A real image of an object is to be obtained. The mirror required for this purpose is : (a) convex mirror (b) concave mirror (c) plane mirror (d) either convex or concave mirror

Description : A real image of an object is to be obtained. The mirror required for this purpose is : (a) convex mirror (b) concave mirror (c) plane mirror (d) either convex or concave mirror

Last Answer : (c) plane mirror

When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface. (A) Concave(B) Convex (C) Plane (D) None of these

Description : When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface. (A) Concave (B) Convex (C) Plane (D) None of these

Last Answer : Answer: Option A

Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of a concave mirror (iii) in front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

Description : Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of ... front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

Last Answer : Answer. Nature of image: Real, inverted and same size image is formed at the centre of curvature. Nature of image: Virtual, enlarged and erect image is formed behind the mirror. Nature of image: Virtual ... : Virtual, erect and diminished image is formed between O and F on the same side of object.

What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Description : What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Last Answer : (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. Explanation: A compound microscope is a microscope which uses multiple lenses to collect light from the ... lens provides the primary magnification which is compounded (multiplied) by the ocular lens (eyepiece).