A diverging lens only produces a virtual image because the light rays never:?

A diverging lens only produces a virtual image because the light rays never:?
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If a real object is placed just inside the focal point of a diverging lens, the image is (a) Virtual, erect and diminished (b) Real, inverted and enlarged (c) Real, inverted and diminished (d) Virtual, erect and enlarged

Description : If a real object is placed just inside the focal point of a diverging lens, the image is (a) Virtual, erect and diminished (b) Real, inverted and enlarged (c) Real, inverted and diminished (d) Virtual, erect and enlarged

Last Answer : Ans:(a)

A camera uses a ______ to form an image on a piece of film at the back. (1) convex lens (2) concave lens (3) diverging lens (4) none of these

Description : A camera uses a ______ to form an image on a piece of film at the back. (1) convex lens (2) concave lens (3) diverging lens (4) none of these

Last Answer : (1) convex lens Explanation: A camera consists of three main parts. • The body which is light tight and contains all the mechanical parts. • The lens which is a convex lens. • The film or a charged couple device in the case of a digital camera.

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

A small hole in the window of a closed room forms an inverted image of outside building on the opposite wall of the room. This happens because (a) the rays of light suffer lateral inversion on entering the hole (b) of the rectilinear propagation of light (c) the hole acts as a convex lens (d) the hole acts as a prism

Description : A small hole in the window of a closed room forms an inverted image of outside building on the opposite wall of the room. This happens because (a) the rays of light suffer lateral inversion on entering the ... propagation of light (c) the hole acts as a convex lens (d) the hole acts as a prism

Last Answer : Ans:(b)

The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as (A) Chromatic aberration (B) Spherical aberration (C) Astigmatism (D) Coma

Description : The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as (A) Chromatic aberration (B) Spherical aberration (C) Astigmatism (D) Coma

Last Answer : (A) Chromatic aberration

17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging? -Physics-10

Description : 17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging? -Physics-10

Last Answer : Power of lens (P) = 1/f P = 1.5D f = 1/1.5 = 10/15 = 0.66 m A convex lens has a positive focal length. Therefore, it is a convex lens or a converging lens.

The power of a thin convex lens of glass is `5 dioptre`. When it is immersed in a liquid of refractive index `mu`, it behave like a diverging lens of

Description : The power of a thin convex lens of glass is `5 dioptre`. When it is immersed in a liquid of refractive index `mu`, it behave like a diverging lens of

Last Answer : The power of a thin convex lens of glass is `5 dioptre`. When it is immersed in a liquid of refractive index ... liquid, if `mu` of glass `= 3//2`.

Long-sight defect could be corrected by using ----- lens? A. concave B. Convex (Answer) C. diverging D. none of these

Description : Long-sight defect could be corrected by using ----- lens? A. concave B. Convex (Answer) C. diverging D. none of these

Last Answer : B. Convex (Answer)

An object of height 4 cm is kept at a distance of 80 cm from the pole af a diverging mirror. If the focal length of the mirror is 10 cm. the height of the image formed is (a) + 3.0 cm (b) + 2.5 cm (c) + 1.0 cm (d) + 0.75 cm

Description : An object of height 4 cm is kept at a distance of 80 cm from the pole af a diverging mirror. If the focal length of the mirror is 10 cm. the height of the image formed is (a) + 3.0 cm (b) + 2.5 cm (c) + 1.0 cm (d) + 0.75 cm

Last Answer : (c) + 1.0 cm

a virtual image produced by a lens is always -General Knowledge

Description : a virtual image produced by a lens is always -General Knowledge

Last Answer : A virtual image produced by a lens is always located in the back of the lens.

Where should an object be placed from a converging lens of focal length 10 c, so as to obtain a virtual image of magnification 2 ?

Description : Where should an object be placed from a converging lens of focal length 10 c, so as to obtain a virtual image of magnification 2 ?

Last Answer : Where should an object be placed from a converging lens of focal length 10 c, so as to obtain a virtual image of magnification 2 ?

A concave lens always forms – (1) a real image (2) a virtual image (3) an Image type which depends on object characteristics (4) an image type which depends on lens curvature

Description : A concave lens always forms – (1) a real image (2) a virtual image (3) an Image type which depends on object characteristics (4) an image type which depends on lens curvature

Last Answer : (2) a virtual image Explanation: Concave lens always form the virtual and erect image and the image is always diminished. Convex lens forms real image as well as virtual image. It forms both enlarged image and the diminished image.

A concave lens always forms an image which is – (1) Real and erect (2) Virtual and erect (3) Real and inverted (4) Virtual and inverted

Description : A concave lens always forms an image which is – (1) Real and erect (2) Virtual and erect (3) Real and inverted (4) Virtual and inverted

Last Answer : (2) Virtual and erect Explanation: Concave lens possesses at least one surface that curves inwards. It is a diverging lens, spreading out those light rays that have been refracted through it. A concave ... is virtual, upright, and smaller than the object, and it cannot be projected onto a screen.

An object nearer to a converging lens than its focal point always has a/an ______ image. a. Inverted b. The same in size c. Virtual d. Smaller size

Description : An object nearer to a converging lens than its focal point always has a/an ______ image. a. Inverted b. The same in size c. Virtual d. Smaller size

Last Answer : c. Virtual

An object farther from a converging lens than its focal point always has a/an _____ image. a. Inverted b. The same in size c. Virtual d. Smaller size

Description : An object farther from a converging lens than its focal point always has a/an _____ image. a. Inverted b. The same in size c. Virtual d. Smaller size

Last Answer : a. Inverted

An object farther from a converging lens than its focal point always has an _______ image. A. virtual B. the same in size C. inverted D. smaller size

Description : An object farther from a converging lens than its focal point always has an _______ image. A. virtual B. the same in size C. inverted D. smaller size

Last Answer : C. inverted

Which of the following statement describes the best about the nature of the image formed if Aditya shifts the candle towards the lens to 36 cm? (a) The nature of the image formed will be virtual, inverted and magnified. (b) The nature of the image formed will be virtual, erect and magnified. (c) The nature of the image formed will be virtual, erect and diminished. (d) The nature of the image formed will be real, inverted and diminished.

Description : Which of the following statement describes the best about the nature of the image formed if Aditya shifts the candle towards the lens to 36 cm? (a) The nature of the image formed will be virtual, ... , erect and diminished. (d) The nature of the image formed will be real, inverted and diminished.

Last Answer : (b) The nature of the image formed will be virtual, erect and magnified.

An object nearer to a converging lens than its focal point always has a/an ______ image. ∙ a. Inverted ∙ b. The same in size ∙ c. Virtual ∙ d. Smaller size

Description : An object nearer to a converging lens than its focal point always has a/an ______ image. ∙ a. Inverted ∙ b. The same in size ∙ c. Virtual ∙ d. Smaller size

Last Answer : c. Virtual

An object farther from a converging lens than its focal point always has a/an _____ image. ∙ a. Inverted ∙ b. The same in size ∙ c. Virtual ∙ d. Smaller size

Description : An object farther from a converging lens than its focal point always has a/an _____ image. ∙ a. Inverted ∙ b. The same in size ∙ c. Virtual ∙ d. Smaller size

Last Answer : a. Inverted

A concave lens always forms a virtual, erect and ________ image . a) same b)magnified c)diminished d)none

Description : A concave lens always forms a virtual, erect and ________ image . a) same b)magnified c)diminished d)none

Last Answer : c)diminished

When object is placed _______ in front of convex lens than image formed is virtual, erect, magnified and on same side beyond F . a) between optical centre and F b)At F c)between F and 2F d)2F

Description : When object is placed _______ in front of convex lens than image formed is virtual, erect, magnified and on same side beyond F . a) between optical centre and F b)At F c)between F and 2F d)2F

Last Answer : a) between optical centre and F

A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. Is the image of the object real or virtual?

Description : A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. Is the image of the object real or virtual?  

Last Answer : ANSWER: VIRTUAL

A concave lens always forms (1) a real image (2) a virtual image (3) an image type which depends on object characteristics (4) an image type which depends on lens curvature

Description : A concave lens always forms (1) a real image (2) a virtual image (3) an image type which depends on object characteristics (4) an image type which depends on lens curvature

Last Answer : a virtual image

A concave lens always forms an image which is (1) real and erect (2) virtual and erect (3) real and inverted (4) virtual and inverted

Description : A concave lens always forms an image which is (1) real and erect (2) virtual and erect (3) real and inverted (4) virtual and inverted 

Last Answer : virtual and erect

Find the position of an object which when placed in front of a concave mirror of focal length 20 cm, produces a virtual image which is twice the size

Description : Find the position of an object which when placed in front of a concave mirror of focal length 20 cm, produces a virtual image which is twice the size

Last Answer : Find the position of an object which when placed in front of a concave mirror of focal length 20 cm ... image which is twice the size of the object.

When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because (a) The hole acts as a convex lens (b) Light takes curvature at the edges of the hole (c) Of rectilinear propagation of light (d) The hole acts as a concave lens

Description : When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because (a) The hole acts as a convex lens (b) ... the edges of the hole (c) Of rectilinear propagation of light (d) The hole acts as a concave lens

Last Answer : Ans:(b)

A concave lens can form a real and inverted image, when : (a) Object is placed at 2f (b) Object is placed beyond 2f (c) Object is placed between f and 2f (d) It can never form a real and

Description : A concave lens can form a real and inverted image, when : (a) Object is placed at 2f (b) Object is placed beyond 2f (c) Object is placed between f and 2f (d) It can never form a real and

Last Answer : (d) It can never form a real and inverted image.

Function of iris is to (a) move lens forward and backward (b) refract light rays (c) bring about movements of eye lids (d) alter the size of pupil.

Description : Function of iris is to (a) move lens forward and backward (b) refract light rays (c) bring about movements of eye lids (d) alter the size of pupil.

Last Answer : (d) alter the size of pupil.

Light rays entering the eye is controlled by (a) pupil (b) iris (c) cornea (d) lens.

Description : Light rays entering the eye is controlled by (a) pupil (b) iris (c) cornea (d) lens.

Last Answer : (a) pupil

Why in Newton’s rings setup, the beam splitter (mirror) is kept at 450? (a) It allows light rays to incident at 450over the top surface of Plano convex lens (b) It allows light rays to incident uniformly over the top surface of Plano convex lens (c) It allows light rays to incident parallel over the top surface of Plano convex lens (d) It allows light rays to incident at 900over the top surface of Plano convex lens

Description : Why in Newton's rings setup, the beam splitter (mirror) is kept at 450? (a) It allows light rays to incident at 450over the top surface of Plano convex lens (b) It allows light rays to ... Plano convex lens (d) It allows light rays to incident at 900over the top surface of Plano convex lens

Last Answer : (d) It allows light rays to incident at 900over the top surface of Plano convex lens

When beam of parallel rays of light falls on _______ then all the rays of light converge . a) convex lens b)concave lens c)plain mirror d)plano concave lens

Description : When beam of parallel rays of light falls on _______ then all the rays of light converge . a) convex lens b)concave lens c)plain mirror d)plano concave lens

Last Answer : a) convex lens

In sliding contact bearings, a positive pressure can be built up and a load supported by a fluid only by the use of a: [IES-2005] (a) Diverging film (b) Converging-diverging film (c) Converging film (d) Flat film

Description : In sliding contact bearings, a positive pressure can be built up and a load supported by a fluid only by the use of a: [IES-2005] (a) Diverging film (b) Converging-diverging film (c) Converging film (d) Flat film

Last Answer : (c) Converging film

A source of light and a screen are placed 90 cm apart. Where should a convex lens of 20 cm focal length be placed in order to form a real image of the

Description : A source of light and a screen are placed 90 cm apart. Where should a convex lens of 20 cm focal length be placed in order to form a real image of the

Last Answer : A source of light and a screen are placed 90 cm apart. Where should a convex lens of 20 cm focal ... form a real image of the source on the screen ?

Moving electric charge produces - (1) magnetic field (2) sound waves (3) light rays (4) heat waves

Description : Moving electric charge produces - (1) magnetic field (2) sound waves (3) light rays (4) heat waves

Last Answer : (1) magnetic field Explanation: An electric charge always produces an electric field, regardless of speed, and a moving charge generates a magnetic field. An electric current passing through a conductor produces a magnetic field because it has many charges in motion.

Moving electric charge produces : (1) magnetic field (2) sound waves (3) light rays (4) heat waves

Description : Moving electric charge produces : (1) magnetic field (2) sound waves (3) light rays (4) heat waves

Last Answer : magnetic field

When describing image formation for flat shiny surfaces what is an important rule to remember about light rays?

Description : When describing image formation for flat shiny surfaces what is an important rule to remember about light rays?

Last Answer : The angle when it leaves is the same as the angle when it hits

In order to form an image as seen in a mirror in what order must light rays reflect?

Description : In order to form an image as seen in a mirror in what order must light rays reflect?

Last Answer : hvjvbjb

What do you call a displaced image of an object as the result of the bending of light rays?

Description : What do you call a displaced image of an object as the result of the bending of light rays?

Last Answer : What is the answer ?

Why is concave mirror used and not convex mirror? (a) because concave mirror can give real image. (b) because convex mirror can give real image. (c) because concave mirror cannot give real image. (d) because convex mirror cannot give virtual image.

Description : Why is concave mirror used and not convex mirror? (a) because concave mirror can give real image. (b) because convex mirror can give real image. (c) because concave mirror cannot give real image. (d) because convex mirror cannot give virtual image.

Last Answer : (a) because concave mirror can give real image.

Magnifying glasses are useful, because they create an enlarged: w) virtual image behind the actual object. x) real image behind the actual object. y) virtual image in front of the actual object. z) real image in front of the actual object.

Description : Magnifying glasses are useful, because they create an enlarged: w) virtual image behind the actual object. x) real image behind the actual object. y) virtual image in front of the actual object. z) real image in front of the actual object.

Last Answer : ANSWER: W -- VIRTUAL IMAGE BEHIND THE ACTUAL OBJECT. 

which of the following is accurate in describing converging and diverging lenses? -General Knowledge

Description : which of the following is accurate in describing converging and diverging lenses? -General Knowledge

Last Answer : The following is accurate in describing converging and diverging lenses:Diverging lenses will produce images behind the lens, and converging lenses will produce images in front of the lens.

Assertion (A): In hydrodynamic journal bearings, the rotating journal is held in floating condition by the hydrodynamic pressure developed in the lubricant. Reason (R): Lubricant flows in a converging-diverging channel. [IES-1994] (a) Both A and R are individually true and R is the correct explanation of A (b) Both A and R are individually true but R is not the correct explanation of A (c) A is true but R is false (d) A is false but R is true

Description : Assertion (A): In hydrodynamic journal bearings, the rotating journal is held in floating condition by the hydrodynamic pressure developed in the lubricant. Reason (R): Lubricant flows in a converging-diverging channel. [IES-1994] ... A (c) A is true but R is false (d) A is false but R is true

Last Answer : (a) Both A and R are individually true and R is the correct explanation of A

Fluid flow at increasing rate through a diverging pipe is an example of __________ flow. (A) Steady uniform (B) Non-steady uniform (C) Steady non-uniform (D) Non-steady non-uniform

Description : Fluid flow at increasing rate through a diverging pipe is an example of __________ flow. (A) Steady uniform (B) Non-steady uniform (C) Steady non-uniform (D) Non-steady non-uniform

Last Answer : (D) Non-steady non-uniform

Pick out the correct statement pertaining to the flow through a converging-diverging tube. (A) The value of Mach number is always unity at the throat (B) No shock wave develops in the tube when the Mach number at exit is greater than unity (C) Throughout the converging portion of the tube, the density increases in the downstream direction (D) None of these

Description : Pick out the correct statement pertaining to the flow through a converging-diverging tube. (A) The value of Mach number is always unity at the throat (B) No shock wave develops in the tube ... the converging portion of the tube, the density increases in the downstream direction (D) None of these

Last Answer : (B) No shock wave develops in the tube when the Mach number at exit is greater than unity

The traffic manoeuvre means (A) Diverging (B) Merging (C) Crossing (D) All the above

Description : The traffic manoeuvre means (A) Diverging (B) Merging (C) Crossing (D) All the above

Last Answer : Answer: Option D

The direct interchange ramp involves (A) Diverging to the right side and merging from left (B) Diverging to the left side and merging from right (C) Diverging to the right side and merging from right (D) Diverging to the left side and merging from left

Description : The direct interchange ramp involves (A) Diverging to the right side and merging from left (B) Diverging to the left side and merging from right (C) Diverging to the right side and merging from right (D) Diverging to the left side and merging from left

Last Answer : Answer: Option C

A concave lens is placed in the path of convergent rays. The rays are focussed on the axis 15 cm behind the lens. Where would these rays have been foc

Description : A concave lens is placed in the path of convergent rays. The rays are focussed on the axis 15 cm behind the lens. Where would these rays have been foc

Last Answer : A concave lens is placed in the path of convergent rays. The rays are focussed on the axis 15 cm behind ... lens ? Focal length of the lens is 30 cm.

The distance between a convex lens and a plane mirror is 15 cm. The parallel rays incident on the convex lens, after reflection from the mirror, form

Description : The distance between a convex lens and a plane mirror is 15 cm. The parallel rays incident on the convex lens, after reflection from the mirror, form

Last Answer : The distance between a convex lens and a plane mirror is 15 cm. The parallel rays incident on the ... and find out the focal length of the lens.

The radii of curvatureof double convex lens of glass `(mu = 1.5)` are in the ratio of `1 : 2`. This lens renders the rays parallel coming from an illu

Description : The radii of curvatureof double convex lens of glass `(mu = 1.5)` are in the ratio of `1 : 2`. This lens renders the rays parallel coming from an illu

Last Answer : The radii of curvatureof double convex lens of glass `(mu = 1.5)` are in the ratio of `1 ... 6 cm`. Calculate the radii of curvature of its surfaces.