Description : For a ray of light to suffer total internal reflection it has to pass from – (1) glass to water (2) water to glass (3) air to water (4) air to glass
Last Answer : (3) air to water Explanation: Total internal reflection is an optical phenomenon that happens when a ray of light strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface.
Description : Total internal reflection can not take place when light goes from – (1) glass to water (2) water to glass (3) water to air (4) glass to air
Last Answer : (2) water to glass Explanation: For total internal reflection to occur the light must travel from a dense medium to a less dense medium (e.g. glass to air or water to air). It will not happen for light traveling from water (n=1.333) towards glass (n=1.52).
Description : Total internal reflection can not take place when light goes from : (1) glass to water (2) water to glass (3) water to air (4) glass to air
Last Answer : water to glass
Description : For a ray of light to suffer total internal reflection it has to pass from : (1) glass to water (2) water to glass (3) air to water (4) air to glass
Last Answer : air to water
Description : In which one of the following the phenomenon of total internal reflection of light is used? (1) Formation of mirage (2) Working of binoculars (3) Formation of rainbow (4) Twinkling of stars
Last Answer : (3) Formation of rainbow Explanation: When the angle of incidence is greater than the critical angle, no refraction occurs. Instead, the incident beam is reflected, obeying the Law of Reflection. This ... , Total Internal Reflection occurs at the rear of the raindrop - the water-to-air interface.
Description : In which one of the following the phenomenon of total internal reflection of light is used ? (1) Formation of mirage (2) Working of binoculars (3) Formation of rainbow (4) Twinkling of stars
Last Answer : Formation of rainbow
Description : Total internal reflection cannot occur, when light–
Last Answer : From water to glass
Description : Light propagates in multimode graded-index fibers according to refraction and total internal reflection. When does total internal reflection occur?
Last Answer : When the angle of incidence becomes larger than the critical angle of incidence.
Description : The phenomenon which causes mirage is – (1) Interference (2) Diffraction (3) Polarisation (4) Total internal reflection
Last Answer : (4) Total internal reflection Explanation: Mirage is caused by total internal reflection in deserts where due to heating of the earth, refractive index of air near the surface of earth becomes lesser than ... ray of light coming from a distant object gets refracted from a denser to a rarer medium.
Description : Optical fibres are based on the phenomenon of – (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection
Last Answer : (4) Total Internal Reflection Explanation: An optical fiber (or optical fibre) is a flexible, transparent fiber made of glass (Silica) or plastic, slightly thicker than a human hair. It functions as a ... is kept in the core by total internal reflection. This causes the fiber to act as a waveguide.
Description : Endoscopy, a technique used to explore the stomach or other inner parts of the body, is based on the phenomenon of (a) Total internal reflection (b) Interference (c) Diffraction (d) Polarisation
Last Answer : Ans: ( a ) Total internal reflection
Description : The phenomenon which causes mirage is (1) Interference (2) Diffraction (3) Polarisation (4) Total internal reflection
Last Answer : Total internal reflection
Description : Optical fibres are based on the phenomenon of (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection
Last Answer : Total Internal Reflection
Description : 1. The salivary gland secrete saliva that contains which enzyme? 2. What does the power of judicial review ensure? 3. Total internal reflection can take place when light travels from which thing? 4. ... population? 20. Akbar founded his own religion known as Din-i-Ilahi' what was its mean?
Last Answer : Answer : 1 1. Ptyalin 2. The constitutionality of laws 3. Diamond to glass 4. Kuwait 5. Pallavas 6. Remain constant 7. Aryabhatta 8. Glucose 9. Wegener 10. Alauddin Khalji 11. 73rd 12. ... Dadabhai Naoroji 17. Fallopian tube 18. Ashok Mehta Committee 19. Australia, Canada and Sweden 20. Divine faith
Description : Light waves projected on oil surface show seven colours due to the phenomenon of (1) polarisation (2) refraction (3) reflection (4) interference
Last Answer : (4) interference Explanation: In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude.
Description : Mirage is caused due to (a) total Internal Reflection of light by the various layers of air (b) illusion of the presence of water (c) result of refraction of light from a non-uniform medium (d) during sunny days when driving on a roadway
Last Answer : (a) total Internal Reflection of light by the various layers of air
Description : Which one of the following processes is responsible for the glittering of air bubble rising through water? (1) Reflection of light (2) Refraction of light (3) Total internal reflection of light (4) Scattering of light
Last Answer : (3) Total internal reflection of light Explanation: Total internal reflection is responsible for glittering which occurs when the light from a denser media (liquid) tries to enter less dense media (air in bubble). This reflected light when captured by our eyes is seen as glittering.
Last Answer : Total internal reflection of light
Description : The mirage is seen in a hot desert because of (a) The density of the layer of air increases with altitude (b) The density of the layer of air decreases with altitude (c) The reflection of light from the layers of sand (d) The total internal reflection from sand
Last Answer : Ans:(a)
Description : A mirage occurs because of – (1) Reflection by hot ground (2) Total internal reflection by layers of air (3) Interference of light (4) Diffraction of light
Last Answer : (2) Total internal reflection by layers of air Explanation: A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the ... -changing mirage. Cold air is denser than warm air and has therefore a greater refractive index.
Description : A mirage occurs because of (1) reflection by hot ground (2) total internal reflection by layers of air (3) interference of light (4) diffraction of light
Last Answer : total internal reflection by layers of air
Description : The critical angle is defined as the angle of incidence at which the total internal reflection starts to occur. State True/False. a) True b) False
Last Answer : a) True
Description : For total internal reflection to occur, which condition must be satisfied? a) N1 = N2 b) N1 > N2 c) N1 < N2 d) N1 x N2=1
Last Answer : b) N1 > N2
Description : A rainbow is formed by the ________ of light by water droplets. (a) dispersion (b) scattering (c) total internal reflection (d) dispersion and total interval reflection
Last Answer : Ans:(d)
Description : A water tank appears shallower when it is viewed from top due to – (1) rectilinear propagation of light (2) reflection (3) total internal reflection (4) refraction
Last Answer : (4) refraction Explanation: This phenomenon is because of refraction of light. The lines of sight intersect at a higher position than where the actual rays originated. This causes the water to appear shallower than it really is.
Last Answer : (4) refraction Explanation: This phenomenon is because of refraction of light. The lines of sight intersect at a higher position than where the actual rays originated. This causes the water to appear ... depth that the water appears to be when viewed from above is known as the apparent depth.
Description : A water tank appears shallower when it is viewed from top due to (1) rectilinear propagation of light (2) reflection (3) total internal reflection (4) refraction
Last Answer : refraction
Description : Which of the following phenomena of light are involved in the formation of a rainbow? (a) Reflection, refraction and dispersion (b) Refraction, dispersion and total internal reflection (c) Refraction, dispersion and internal reflection (d) Dispersion, scattering and total internal reflection
Last Answer : (b) Refraction, dispersion and total internal reflection
Description : Total internal reflection of light is possible when light enters from which thing? -General Knowledge
Last Answer : The answer is 'Water to air'
Description : Total internal reflection can take place when light travels from which thing? -Do You Know?
Last Answer : answer:
Description : ‘Mirage' is an example of - (1) Refraction of light only (2) Total internal reflection of light only (3) Refraction and total internal reflection of light (4) Dispersion of light only
Last Answer : (3) refraction and total internal reflection of light
Description : 'Mirage' is an example of – (1) refraction of light only (2) total internal, reflection of light only (3) refraction and total internal reflection of light (4) dispersion of light only
Last Answer : (3) refraction and total internal reflection of light Explanation: A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects ... significantly warmer air, the light rays bend away from the direction of the temperature gradient.
Description : Formation of shadows can be explained by - (1) rectilinear propagation of light (2) reflection (3) refraction (4) total internal reflection
Last Answer : (1) rectilinear propagation of light Explanation: In this position, the head light will be at the principal focus so that the rays of light falling on the concave mirror will be rendered parallel
Description : Fibre optics work on the principle of - (1) scattering of light (2) total internal absorption (3) total internal reflection (4) option rotation
Last Answer : (3) total internal reflection Explanation: An optical fibre is a cylindrical dielectric waveguide (non-conducting waveguide) that transmits light along its axis, by the process of total internal reflection.
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 : What is the reason for twinkling of stars? (1) Dispersion of light (2) Total internal reflection (3) Atmospheric reflection (4) Atmospheric refraction
Last Answer : (4) Atmospheric refraction Explanation: Seismometers are instrument that measures motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions and other seismic ... of these different sources. Seismograph is another Greek term meaning to draw siesmo waves.
Last Answer : (1) rectilinear propagation of light Explanation: In this position, the head light will be at the principal focus so that the rays of light falling on the concave mirror will be rendered parallel.
Description : The sparkling of a diamond is due to – (1) total internal reflection of light (2) interference of light (3) polarisation of light (4) refraction of light
Last Answer : (1) total internal reflection of light Explanation: Diamonds sparkle because of the total internal reflection of light. Diamonds have a very high refractive index, meaning they slow light down much more ... so that light seems to get 'trapped' within the diamond giving it it's sparkly appearance.
Description : Fibre optics work on the principle of – (1) Scattering of light (2) Total internal absorption (3) Total internal reflection (4) Optical rotation
Last Answer : (3) Total internal reflection Explanation: An optical fiber (or optical fibre) is a flexible, transparent fiber made of glass (silica) or plastic, slightly thicker than a human hair. It ... science and engineering concerned with the design and application of optical fibers is known as fiber optics.
Description : Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle? a. Less than b. Grater than c. Equal to d. Zero
Last Answer : b. Grater than
Description : For total internal reflection, ray of Light Has to pass through
Last Answer : Glass to water
Description : Total internal reflection can take place when light travels from which thing?
Last Answer : Diamond to glass
Description : Total internal reflection of light is possible when light enters from which thing?
Last Answer : Water to air
Description : Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle? ∙ A. less than ∙ B. greater than ∙ C. equal to ∙ D. zero
Last Answer : ∙ B. greater than
Description : Total internal reflection takes place if the light ray strikes the interface at an angle with what relationship to the critical angle? ∙ a. Less than ∙ b. Grater than ∙ c. Equal to ∙ d. Zer
Last Answer : ∙ b. Grater than
Description : 1. Total internal reflection of light is possible when light enters from which thing? 2. The book Worshipping False Gods's is written by which person? 3. When was the Rolling plan ... ruler which was not invited to join the confederacy to fight against Vijaynagar in the battle of Talikota?
Last Answer : Answer : 1. Water to air 2. Arun Shourie 3. 1978-83 4. Western Ghats 5. Chandragupta II 6. Reproductive system 7. Rajya Sabha alone 8. Mercury 9. Tropical rain forest 10. Krishna III 11. Saeed ... din-Mahmud 16. The Speaker of the Lok Sabha 17. 6 18. Minimum Reserve System 19. Narmada 20. Berar