Description : What causes green fecal matter in humans?
Last Answer : Soylent green. Didn’t you see the movie? link
Description : In your opinion what are the pros and cons for circumcision on the male?
Last Answer : I was told it is more to clean things up as the excess skin can problematic, suppose just hygiene purposes. I don’t even remember being circumcised when I was little.
Description : At what age do men stop growing?
Last Answer : answer:Men usually reach their maximum height by 20 and women usually reach their maximum height by 17. Source
Description : Why doesn't our tongue taste anything if it does not touch the roof of our mouth while chewing?
Last Answer : mazingerz88 different results with the bourbon I am sipping.. I however am on a mission now. I hope my tongue is up to the challenge!
Description : If you had to pick one organ to internally rupture inside of you which one would you pick and why?
Last Answer : This one. :) because it blows
Description : I can pop my ears at will. Is this normal?
Last Answer : Probably not so good for your eardrums in the long run. It is not a common practice and would thus appear to be unusual. (sentence)
Description : Do people with tails have control of them?
Last Answer : I have no idea, but this is such an odd question; can’t wait to see responses.
Description : What is the indentation under nose that bumps into tips of upper lip called?
Last Answer : there is a word for it, and I am not sure how you spell it, but is sounds very simiar to dybbuk or dibic...
Description : What purpose do toenails serve?
Last Answer : same purpose fingernails serve.
Description : which of the following occurs when light is reflected from a rough or unpolished surface -General Knowledge
Last Answer : The original pattern of the light is distorted, this occurs when light is reflected from a rough or unpolished surface.
Description : Explain why a ray of light passing through the centre of curvature of concave minor gets reflected along the same path. -Science
Last Answer : The light falling on the centre of curvature is reflected back along the same path because incident ray falls on the mirror along the normal to the reflecting surface.
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 : Is blue light reflected by green leaf?
Last Answer : Need answer
Description : What does the law of reflection tell us about the angle of a reflected ray of light?
Last Answer : The law of reflection states that a light ray will reflect at the same angle that it hits a surface. We can use this law to guide light to different targets!
Description : When a light wave is reflected from a mirror, there is a change in its
Last Answer : Amplitude
Description : Consider the following statements and select the correct answer from the codes given below: 1. Viruses are obligate parasites and cannot be cultured on a synthetic medium 2. The red snow phenomenon observed in some alpine and arctic regions is ... (a) 1, 2 and 4 (b) 2 and 4 (c) 2 and 3 (d) 1 and 3
Last Answer : Ans:(d)
Description : Energy in reflected light : (1) does not depends on the angle of incidence (2) increases with the increase in angle (3) decreases with the increase in angle of incidence (4) becomes maximum for angle of incidence equal to 45°
Last Answer : (2) increases with the increase in angle Explanation: Reflected waves are simply those waves that are neither transmitted nor absorbed, but are reflected from the surface of the medium they encounter. The ... depends on the nature of the surface and the angle at which the wave strikes the surface.
Description : Winch of the following is not true about X-rays? (1) have low penetrating power (2) travel with the speed of light (3) Can be reflected or refracted (4) can affect photographic plates
Last Answer : (1) have low penetrating power Explanation: X-rays and gamma rays are photons, i.e. high-energy light-waves. When emitted by a source, for example, radium or cobalt, located outside the body, they ... they can be used in diagnostic medicine to image human bones or human organs made opaque by a dye.
Description : A ray of white light strikes the surface of an object. If all the colours are reflected, the surface would appear (1) Black (2) White (3) Grey (4) Opaque
Last Answer : (2) White Explanation: Objects do not have any colour of their own. When light hits a surface, some of it is absorbed and some of it is reflected. The light that is reflected is ... appear white when they reflect all the wavelengths; they appear black when they absorb all visible wavelengths.
Description : When a strong beam of light is passed through a colloidal solution, the light will – (1) be scattered (2) pass unchanged (3) be absorbed (4) be reflected
Last Answer : (1) be scattered Explanation: When a strong beam of light is passed through a colloidal solution, the light will be scattered.
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 : 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 : Pick up the correct statement from the following: (A) The minimum frequency of light for which no electrons are emitted, is called threshold frequency (B) Polarising angle of glass is 57.5° (C) At the polarising angle, the reflected and refracted rays are orthogonal (D) All the above
Last Answer : Answer: Option D
Description : When a light wave is reflected from a mirror, there is a change in its?
Description : Fill in the blanks with the appropriate option. The light which reflected on the screen ___________ the whole room. (a) Scintillated (b) Tillated (c) Lionized (d) Dimmed
Last Answer : Ans: a) Scintillated
Description : In fiber-to-fiber connections, Fresnel reflection is one source of coupling losses. Light is reflected back into the source fiber and is lost. What causes Fresnel reflection?
Last Answer : A step change in refractive index that occurs at fiber joints, caused by fiber separation.
Description : What condition causes a light ray to be totally reflected back into its medium of propagation?
Last Answer : Total internal reflection occurs when the angle of refraction approaches 90 degrees. This condition occurs when the angle of incidence increases to the point where no refraction is possible.
Description : When light strikes a piece of white paper, the light is reflected in all directions. What do we call this scattering of light?
Last Answer : Diffusion.
Description : A light wave enters a sheet of glass at a perfect right angle to the surface. Is the majority of the wave reflected, refracted, transmitted, or absorbed?
Last Answer : Transmitted.
Description : An incident ray can be defined as ∙ A. a light ray reflected from a flat surface ∙ B. a light directed toward a surface ∙ C. a diffused light ray ∙ D. a light ray that happens periodically
Last Answer : ∙ B. a light directed toward a surface
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 : Anincidentraycan be defined as a. a light ray reflected from a flat surface b. alight raydirectedtowardasurface c. a diffused light ray d. a light ray that happens periodically
Last Answer : b. alight raydirectedtowardasurface
Description : Newton's rings are formed because of interference between the light Reflected from (a) Upper surface of Plano-convex lens and lower surface of plane glass plate (b) Lower surface of Plano-convex ... c) Lower and upper surface of Plano-convex (d) Lower and upper surfaces of plane glass plate
Last Answer : (b) Lower surface of Plano-convex lens and upper surface of plane glass plate
Description : When a light wave suffers reflection at the interface between air and glass medium, the change of wavelength of the reflected wave in air is equal to (a) 0 (b) λ/2 (c) λ (d) 2λ
Last Answer : (b) λ/2
Description : When a light wave suffers reflection at the interface between air and glass medium, the change of phase of the reflected wave in air is equal to (a) 0 (b) π (c) 2π (d) π/2
Last Answer : (b) π
Description : If you look perpendicular at thin film and move yourself away from the film (staying perpendicular to the film), you will notice (a) Reflected light becomes brighter and brighter (b) Reflected ... and darker (c) Reflected light alternates between darker and brighter (d) None of the Above
Last Answer : (c) Reflected light alternates between darker and brighter
Description : The interference in thin films is because (a) The film reflects some light (b) The film is thin enough so that refracted ray is close to reflected ray (c) The reflected ray undergo path change of λ/2 (d) All of above
Last Answer : (d) All of above
Description : When a light wave suffers reflection at the interface between air and glass medium, the change of phase of the reflected wave in air is equal to A. 0 B. π C.2 π D.π /2
Last Answer : B. π
Description : When Newton’s rings interference pattern is viewed from above by means of reflected light, the central spot is __________. A. Dark B. Multi colored C. Bright D. None of these
Last Answer : A. Dark
Description : On a rainy day, small oil films on water show brilliant colors'. This is due to A. dispersion B. interference C. diffraction D. Polarization 49.The critical angle for a beam of light ... A. absorbed B. totally reflected C. Partially reflected and partially transmitted D. Totally transmitted
Last Answer : C. Partially reflected and partially transmitted
Description : In reflected light the central fringes of Newton's ring is A. dark B. Bright C. Uniform D. Non uniform
Last Answer : A. dark
Description : When a light ray travelling in glass is incident on an air surface, A. it will refract away from the normal B. some of the light may be reflected C. all of the light may be reflected D. two of A, B, and C E. all of A, B, and C
Last Answer : E. all of A, B, and C
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 .
Description : When light falls on shiny surface it gets __________ . a) refracted b)reflected c)bent d)nothing happens
Last Answer : b)reflected
Description : A beam of light is incident on a perfectly smooth body of water. The angle that the REFLECTED ray makes with the normal is: w) greater than x) smaller than y) the same as the angle the incident ray makes with the normal.
Last Answer : ANSWER: Y -- THE SAME AS
Description : A light ray traveling from glass into air strikes the glass-air surface at an angle 50 degrees to the normal. If the critical angle for the glass-air combination is 42 degrees, the percentage of light reflected from the surface is w) 6 x) 25 y) 38 z) 100
Last Answer : ANSWER: Z -- 100
Description : When light is reflected from a surface, the angle of incidence is: w) 30 degrees x) equal to the angle of reflection y) 90 degrees z) 180 degrees
Last Answer : ANSWER: X -- EQUAL TO THE ANGLE OF REFLECTION
Description : Light is normally incident on a thin soap film and is reflected. If the wavelength of this light is "L" and the index of refraction of the soap film is "N", complete destructive interference will occur for a film thickness of: w) L / 8N x) L / 4N y) L / 2N z) 3L / 4N
Last Answer : ANSWER: Y -- L / 2N