Description : When a ray of light is going from one medium to another, how is its frequency? -General Knowledge
Last Answer : answer:
Description : 1. When a ray of light is going from one medium to another, how is its frequency? 2. Who is the author of The Kalam effect: My years with the president ? 3. CENVAT is ... the Relative humidity of the atmosphere directly affected? 20. Kautilya was the Prime Minister of which Indian ruler ?
Last Answer : Answer : 1. Frequency remains same 2. P.M. Nayer 3. Rate of indirect tax 4. 60°S 5. Undeciphered 6. Histology 7. By the Election Commission 8. Sodium carbonate 9. India and Saudi Arabia 10 ... 16. 58th 17. In doing external work 18. 200 19. Change in atmospheric temperature 20. Chandragupta Maurya
Description : The bending of light when a ray of light travels from one medium to another is called.?
Last Answer : Refraction
Description : When a beam of light enters one medium from another, which quantity will not change? a. Direction b. Speed c. Frequency d. Wavelength
Last Answer : c. Frequency
Description : Quantity that do not change when a beam of light enters on e medium to another. A. Frequency B. Wavelength C. Direction D. Speed
Last Answer : A. Frequency
Description : When a beam of light enters one medium from another, which quantity will not change? ∙ a. Direction ∙ b. Speed ∙ c. Frequency ∙ d. Wavelength
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 : A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection
Last Answer : (4) total internal reflection Explanation: If the angle of incidence of light ray in the denser medium is greater than the critical angle of the concerned media pair, the light is not at all reflected in to the rarer medium but is totally reflected. This is known as 'total internal reflection'.
Description : When a ray of light falls on a smooth surface and returns to the same medium, it is called?
Last Answer : Reflection of light
Description : A ray of light starting from air passes through medium A of refractive index 1.50, enters medium B of refractive index 1.33 and finally enters medium C of refractive index 2.42. If this ray emerges out in air from C, then ... of media the bending of light least? (a) air-A (b) A-B (c) B-C (d) C-air
Last Answer : Answer : (b)
Description : When light enters an optically denser medium, the light ray: w) bends away from a normal to surface x) passes through unbent y) bends towards a normal to surface z) none of the above
Last Answer : ANSWER: Y -- BENDS TOWARDS A NORMAL TO SURFACE
Last Answer : total internal reflection
Description : Red light is used for signals because it has – (1) long wavelength (2) high intensity (3) high frequency (4) low refraction in the medium
Last Answer : (1) long wavelength Explanation: Red is the international colour of stop signs and stop lights on highways and intersections because it is scattered the least by air molecules. The effect of scattering is ... the colours and is able to travel the longest distance through fog, rain, and the alike.
Description : Coherent light of a single frequency passes through a double slit with a separation d, to produce a pattern on a screen as distance D from the slits. What would cause the separation between adjacent ... d between the slits C. increase the distance D. increase the frequency of the incident light
Last Answer : B. increase the separation d between the slits
Description : The speed of light in vacuum "C" divided by the Index of Refraction "N" gives the: w) frequency of the light x) speed of the light in the medium y) energy of the light z) wavelength of the light
Last Answer : ANSWER: X -- SPEED OF THE LIGHT IN THE MEDIUM
Description : Red light is used for signals because it has (1) long wavelength (2) high intensity (3) high frequency (4) low refraction in the medium
Last Answer : long wavelength
Description : It is the angle formed between the propagating ray and the normal after the ray has entered the second medium. ∙ A. angle of incidence ∙ B. angle of reflection ∙ C. propagation angle ∙ D. angle of refraction
Last Answer : angle of reflection
Description : What term is used to describe the procedure whereby a catheter is inserted into an individual's heart, a radio-opaque medium is injected, and x-ray images are made. The procedure is used to locate wher arteries are blocked and the degree to which the blockage has developed.
Last Answer : ANSWER: Angiography or Angiogram
Description : Dispersion is used to describe the a. Splitting of white light into its component colors b. Propagation of light in straight lines c. Bending of a beam of light when it goes from one medium to another d. Bending of a beam light when it strikes a mirror
Last Answer : a. Splitting of white light into its component colors
Description : Dispersion is used to describe the ∙ a. Splitting of white light into its component colors ∙ b. Propagation of light in straight lines ∙ c. Bending of a beam of light when it goes from one medium to another ∙ d. Bending of a beam light when it strikes a mirror
Description : The refractive indices of four media A, B, C and D are given in the following table: light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-9 If light, travels from one medium to another, in which case the change in speed will be (i) minimum, (ii) maximum? -Physics
Last Answer : (i) Minimum change is seen as light moves between 1.50 and 1.52, i.e. B and C. (ii) Maximum change when light moves between 1.33 and 2.40, i.e. A and D.
Description : The phenomenon of change in direction of light when it passes from one medium to another is called - (1) Propagation (2) Reflection (3) Refraction (4) Dispersion
Last Answer : (3) Refraction Explanation: Refraction is the change in direction of wave propagation due to a change in its transmission medium. Due to the change of medium, the phase velocity of the wave is changed but its frequency remains constant.
Description : The phenomenon of change in direction of light when it passes from one medium to another is called (1) Propagation (2) Reflection (3) Refraction (4) Dispersion
Description : When a story changes medium, it lets the audience?
Last Answer : Reinterpret the story (Apex)
Description : When an existing story is presented in a new medium the _____ almost always changes?
Last Answer : Audience's perspective of the story. APEX
Description : In basic medium, `I^(-)` is oxidised by `MnO_(4)^(-)` . In this process, `I^(-)` changes to :
Last Answer : In basic medium, `I^(-)` is oxidised by `MnO_(4)^(-)` . In this process, `I^(-)` changes to : A. `IO_(3)^(-)` B. `I_(2)` C. `IO_(4)^(-)` D. `IO^(-)`
Description : When a wave changes speed as it enters a new medium at an angle it undergoes diffraction?
Last Answer : Need answer
Description : The wild type E.coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as sugar. Which of the following changes take place? (a) The lac operon is ... ) E.coli cells stop dividing. (c) The lac operon is repressed. (d) All operons are induced.
Last Answer : (a) The lac operon is induced
Description : When light passes from air into water, the frequency of the light remains the same. What happens to the speed? And the wavelength of light as it crosses the boundary in going from air into ... same Decreases C. Remains the same remains the same D. Decreases Increases E. Decreases Decreases
Last Answer : E. Decreases Decreases
Description : Is Blu-ray ever going to replace DVD?
Last Answer : I don’t think so. It kind of reminds me of the battle between Beta and VHS. Beta probably should have won, but it didn’t. I don’t know why.
Description : I'm going to be getting a new computer soon and wanted to get a blu-ray player built in, what should I be looking for in a monitor?
Last Answer : That monitor should work for you. Blu-ray videos are 1080p resolution (1920 1080), so like you said in order to harness the potential, you'll want a monitor that is capable of 1080p. You'll also want ... wanting to watch movies. Again you'll only see the full Blu-ray quality if you have a 1080p TV.
Description : Due to change of medium the phase ve- locity of the wave is changed but its frequency remains?
Last Answer : Constant
Description : Why does she have to go to another office Mary goes to the doctor who determines she needs some blood drawn and an x-ray she ends up having to go to another office please explain to Mary why this is?
Last Answer : Feel Free to Answer
Description : Quality of a musical note depends on – (1) Fundamental frequency (2) Amplitude of the wave (3) Harmonics present (4) Velocity of sound in the medium
Last Answer : (3) Harmonics present Explanation: Sound "quality" or "timbre" describes those characteristics of sound which allow the ear to distinguish sounds which have the same pitch and loudness. Timbre is mainly ... and the attack-decay envelope of the sound. Harmonic content is the most important of these.
Description : A simple pendulum is found to vibrate at a frequency of 0.5Hz in vacuum and0.45 Hz in a viscous fluid medium. Find the damping factor. 0.5122 (B) 0.9272 (C) 0.4359 (D) 0.2568
Last Answer : (C) 0.4359
Description : A simple pendulum is found to vibrate at a frequency of 0.5Hz in vacuum and 0.45Hz in a viscous fluid medium. Find the damping factor. A 0.5122 B 0.9237 C 0.4359 D 0.2568
Last Answer : C 0.4359
Description : A wave in which the wave’s medium is compressed in the same direction as the movement of the wave A. Transversal wave B. Transverse wave C. Frequency wave D. compression wave
Last Answer : C. Frequency wave
Description : The speed of any mechanical wave as it propagates through a medium is dependent mainly on the A. frequency of the wave source B. wavelength C. period of the wave D. type of medium through which the wave travels E. amplitude
Last Answer : D. type of medium through which the wave travels
Description : Quality of a musical note depends on (1) Fundamental frequency (2) Amplitude of the wave (3) Harmonics present (4) Velocity of sound in the medium
Last Answer : Harmonics present
Description : Write any one application of the following range. 1. Radio frequency 2. IR frequency 3. Medium frequency
Last Answer : Application of 1. Radio Frequency- Radar signals and communication 2. IR Frequency- LED, Laser, TV remote, Used for directed links e.g. to connect different buildings via laser links. 3. Medium Frequency- AM broadcasting.
Description : 13. A ray of light, incident obliquely on a face of a rectangular glass slab placed in air, emerges from the opposite face parallel to the incident ray. State two factors on which the lateral displacement of the emergent ray depends. [Foreign] -Chemistry-10
Last Answer : Lateral displacement depends on the: angle of incidence, thickness of slab, and refractive index of the material. (any two)
Description : 4. If a light ray IM is incident on the surface AB as shown, identify the correct emergent ray. [Delhi (C)] -Chemistry-10
Last Answer : Answer. Ray NQ, as it has to be parallel to ray OS.
Description : 1. A ray of light travelling in air enters obliquely into water. Does the light ray bends towards the normal or away from the normal? Why? -Physics-10
Last Answer : The light ray bends towards the normal. When a light ray enters from an optically rarer medium (which has low refractive index) to an optically denser medium (which has a high refractive index), ... denser than air, a ray of light entering from air into water will bend towards the normal.
Description : If a light ray IM is incident on the surface AB as shown, identify the correct emergent ray. light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-8 -Physics
Last Answer : Ray NQ, as it has to be parallel to ray OS.
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 : If a ray of light has a wavelength of 465 nanometers, what shade of visible light does it produce?
Last Answer : Blue
Description : When a ray of light passes through a prism,
Last Answer : When a ray of light passes through a prism, A. the deviation of red light is maximum. B. the ... blue light is maximum. D. all rays deviate equally.
Description : A light ray is incident on a plane mirror placed in a horizontal plane, making an angle of `30^(@)` with the vertical, then the angle between the refl
Last Answer : A light ray is incident on a plane mirror placed in a horizontal plane, making an angle of `30^(@)` with the vertical, ... @)` C. `90^(@)` D. `30^(@)`
Description : A ray of light incident at `49^(@)` on the face of an equilaternal prism passes symmetrically. Calculate the refractive index of the material of the p
Last Answer : A ray of light incident at `49^(@)` on the face of an equilaternal prism passes symmetrically. ... the refractive index of the material of the prism.