Description : An incident ray comes in parallel to the principle axis of a concave mirror. Is it reflected: w) back along the incident ray x) at 30 degrees to incident ray y) through the focal point z) through the center of curvature
Last Answer : ANSWER: Y -- THROUGH THE FOCAL POINT
Description : A concave mirror of focal length 15 cm can form a magnified, erect as well as inverted image of an object placed in front of it." Justify this statement stating the position of the object with respect to the pole of the mirror in both the cases for obtaining the images. -Science
Last Answer : For magnified and erect image the object is placed between pole P and focus F. For magnified and inverted image the object is placed either at focus or anywhere between F and C.
Description : When a light wave is reflected from a mirror, there is a change in its – (1) frequency (2) amplitude (3) wavelength (4) velocity
Last Answer : (2) amplitude Explanation: When a light wave is reflected from an object, it changes not only its amplitude but also its phase according to the properties of the object at a particular point. The velocity and momentum are just reversed in another direction.
Description : When a light wave is reflected from a mirror, there is a change in its (1) frequency (2) amplitude (3) wavelength (4) velocity
Last Answer : amplitude
Description : . A and B are stereoisomers. They are nonsuperimposable and are mirror images of one another. Which of the following best describes the relationship between A and B? (a) structural isomers (b) enantiomers (c) cis-trans isomers (d) diastereomers
Last Answer : enantiomers
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.
Description : A boy is standing in front of a plane mirror at a distance of 3 m from it. What is the distance between the boy and his image? (1) 3 m (2) 6 m (3) 4.5 m (4) None of these
Last Answer : (2) 6 m Explanation: The image formed by a plane mirror is always virtual upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location from which the light rays appear to come
Description : The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Is the image of this object real or virtual?
Last Answer : ANSWER: REAL
Description : The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed?
Last Answer : ANSWER: 8/3 METER or 2.66 METERS IN FRONT OF THE MIRROR
Description : Since when can a person's worth to society be reflected in a mirror?
Last Answer : answer:I agree that this phenomenon exists. I suspect it is something fairly innate, not just culture. I know there are cultures where bigness is a sign of status and wealth. So I could be wrong. But I do think ... mate a person is. It's built into us, I believe, and it won't ever evolve out of us.
Description : Have you ever noticed that if you look at your iris in a mirror, you can see your face reflected in it?
Last Answer : I first noticed this when on 3 hits of LSD. I was stuck in the bathroom for hours….
Description : What kind of light is reflected in the mirror ?
Last Answer : Regular reflection of light occurs in the mirror.
Description : A plane mirror rotating at an angular velocity of 3 radian/s reflects a light beam. The angular velocity of the reflected beam is -
Last Answer : A plane mirror rotating at an angular velocity of 3 radian/s reflects a light beam. The angular velocity of the reflected beam is -
Description : When a light wave is reflected from a mirror, there is a change in its
Last Answer : Amplitude
Description : If a mirror is used to reflect light, the reflected light angle is ____ as the incident angle a. Smaller b. Larger c. The same d. Independent
Last Answer : c. The same
Description : Heat waves (A) Cannot pass through vacuum (B) Travel in straight line (C) Can be reflected by a mirror (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : When a light wave is reflected from a mirror, there is a change in its?
Description : If a mirror is used to reflect light, the reflected light angle is ____ as the incident angle ∙ a. Smaller ∙ b. Larger ∙ c. The same ∙ d. Independent
Description : I'm curious why my dog often sees his own reflection in a large glass door and barks at himself as if there is another dog outside, but when I have him sit in front of a full-length mirror he never reacts to his own reflection?
Last Answer : I think the difference is that the dog in the glass is outside the boundary of the den—your house—and thus is not recognized as himself. Therefore, barking.
Description : Are mirror images 3 dimensional?
Last Answer : Mirror images are not three dimensional. A three dimensional image must have depth. And I believe I would notice the difference. Photos look very different, especially from the perspective you look at a mirror from.
Description : Mirror system that reverses images each eye sees?
Last Answer : Freeviewing http://en.wikipedia.org/wiki/Stereoscopy
Description : 1. Name the scientist who had discovered that some molecules have mirror images? -Discoveries and Inventions
Last Answer : Explanation: Louis Pasteur discovered that some molecules have mirror images and explained them as left-handed and right-handed versions of a chemical compound.
Description : Name the scientist who had discovered that some molecules have mirror images? -Discoveries and Inventions
Last Answer : Louis Pasteur... :)
Description : An object is placed at a distance of 15 cm from a convex mirror and images is formed at a distance of 5 cm from the mirror. Calculate the radius of cu
Last Answer : An object is placed at a distance of 15 cm from a convex mirror and images is formed at a ... mirror. Calculate the radius of curvature of the mirror.
Description : How many images formed by two plane mirror at 180 degree angle?
Last Answer : 2 is answer
Description : What kind of symmetry is shown in animals whose body can only be divided in one plane to show mirror images?
Last Answer : bilateral
Description : Optical isomers that are mirror images and non superimposable are called (A) Diastereomers (B) Euantiomers (C) dl isomers (D) Stereomers
Last Answer : Answer : B
Description : α-D-Glucose is different from β-D-glucose (a) in the configuration at C-1 (b) because they are mirror images of each other (c) because they are enantiomers (d) because they are geometrical isomers
Last Answer : in the configuration at C-1
Description : Which of the statements is correct about diastereomers? (a) They are stereoisomers that are not enantiomers. (b) They are a pair of identical isomers. (c) They are a pair of isomers that are mirror images. (d) All their asymmetric centers are the same.
Last Answer : They are stereoisomers that are not enantiomers
Description : Which of the following statements is false about enantiomers? (a) rotate plane-polarized light (b) are superimposable mirror images (c) are nonsuperimposable mirror images (d) have the same melting point
Last Answer : are superimposable mirror images
Description : Enantiomers have which of the following characteristics? (a) rotate ordinary light (b) have the same melting point (c) are superimposable mirror images (d) react with optically active molecules at the same rate
Last Answer : have the same melting point
Description : Optical isomers that are not mirror images are called (a) Diastereomers (b) Enantiomers (c) Metamers (d) Meso compounds
Last Answer : Diastereomers
Description : Optical isomers that are mirror images are called : (a) Tautomers (b) Diastereomers (c) Enantiomers (d) Metamers
Last Answer : Enantiomers
Description : Optical isomers are ------. a. Identical structures b. Not mirror images of each other c. Non super-imposable mirror images of each other. d. Super-imposable mirror images of each other
Last Answer : c. Non super-imposable mirror images of each other.
Description : When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called (A) Surf (B) Clapotis (C) Fetch (D) Swell
Last Answer : (B) Clapotis
Description : Do you sell your textbooks after you're done using them or hold onto them forever?
Last Answer : I can’t help it, I keep ‘em. I even have an old Criminology textbook from Community College.
Description : On my own, I am darkness, a black abyss. But, Life brings me light with its gentle kiss. I am quiet and cold, but warmth I can hold. Alongside beauties and wonders, sights to be told. My surface may ... earth I have come, and forever will stay, even if parts of me crumble away. What am I? -Riddles
Last Answer : A cave.
Description : Everyone can hold me, but not in there hand, and not forever. What am I? -Riddles
Last Answer : Your breath.
Description : What happens if someone objects during the “speak now or forever hold your peace†part of a wedding?
Last Answer : It depends on the circumstances under which the party is objecting. For instance, if the objection comes from a disgruntled family member who simply disapproves of the union for personal reasons ... addressed when the couple obtained their marriage license, making the question more or less obsolete.
Description : Which of the following conditions does not hold good for a solution to a critical section problem ? (A) No assumptions may be made about speeds or the number of CPUs. (B) No two processes ... critical section may block other processes. (D) Processes do not wait forever to enter its critical section.
Last Answer : (C) Processes running outside its critical section may block other processes.
Description : In binocular vision: a. only points on the horopter fall on the corresponding retinal point b. points in front of the horopter will stimulate binasal retina c. points outside the horopter ... the periphery e. sensory fusion refers to the cortical integration of images perceived by the two eyes
Last Answer : only points on the horopter fall on the corresponding retinal point
Description : Weather satellites transmit cloud cover and temperature-humidity profiles back to Earth using images of which combination of the electromagnetic radiation types? w) infra-red and visible light x) ultraviolet and nuclear magnetic y) ultraviolet and infra-red z) ultraviolet and visible light
Last Answer : ANSWER: W -- INFRA-RED AND VISIBLE LIGHT
Description : If you are holding a mirror in front of you and run at the speed of light, will the mirror turn black?
Last Answer : You would never get there.
Description : 14. An object 2 cm in size is placed 30 cm in front of a concave mirror of focal length 15 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp image? What will be the nature and the size of the -Chemistry-10
Last Answer : Answer. hope this helps you
Description : 15. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharply focused image can be obtained? Find the size and nature of the image. -Physics-10
Last Answer : Object distance (u) = – 27 cm Object height (h) = 7 cm Focal length (f) = – 18 cm According to the mirror formula, The negative value of image height indicates that the image formed is inverted.
Description : 14. An object 5 cm is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position, nature and size of the image. -Physics-10
Last Answer : Object distance (u) = - 20 cm Object height (h) = 5 cm Radius of curvature (R) = 30 cm Radius of curvature = 2 Focal length R = 2f f = 15 cm According to the mirror formula, ... image height indicates that the image formed is erect. Hence, the image formed is erect, virtual, and smaller in size.
Description : 2. A concave mirror produces three times magnified (enlarged) real image of an object placed at 10 cm in front of it. Where is the image located? -Physics-10
Last Answer : Magnification produced by a spherical mirror: Object distance (u) = – 10 cm v = 3 × (- 10) = – 30 cm Therefore, the negative sign indicates that an inverted image is formed in front of the given concave mirror at a distance of 30 cm.
Description : An object is placed at a distance of 12 cm in front of a concave mirror of radius of curvature 30 cm. List four characteristics of the image formed by the mirror. -Science
Last Answer : Here, radius of curvature of concave mirror, R = 30 cm. Therefore, focal length of the mirror, f = R/2 = 30/2 = 15 cm Also, object distance, u = 12 cm Hence, knowing the focal length of mirror and ... (i) Erect (ii) Larger in size than that of the object (iii) Virtual and (iv) Behind the mirror.
Description : An object is placed in front of a mirror. Arrange the following steps in sequential order to determine the nature of the mirror. (A) Check whether the
Last Answer : An object is placed in front of a mirror. Arrange the following steps in sequential order to determine the nature ... A. ACBD B. BDCA C. ACDB D. BADC