The wavelength of red coloured light is about _ times that of the blue coloured light.refraction total internal reflection Tyndall effect dispersion Sometimes the smoke emitted by the combustion of oil appears blue due to.smaller wavelength medium wavelength larger wavelength only blue colour Bigger size particles present in atmosphere scatter the light of.smaller wavelength medium wavelength larger wavelength all wavelengths Very minute particles present in atmosphere scatter the light of.dispersion interference diffraction scattering
The deflection of light by minute particles and molecules in all direction is called _ of light.The milky or cloudy layer formed on the eye lens of a person is called.Myopia Hypermetropia Presbyopia Colour blindness Which of the following defects is the result of ageing of a person?.concave lens convex lens combination of concave and convex lenses biconcave lens The defect of far-sightedness (hypermetropia) is corrected by using _ of suitable power.concave lens convex lens combination of concave and convex lenses biconvex lens The defect of near-sightedness is corrected by using _ of suitable power.upto 25 cm 25 cm beyond 25 cm 25 cm and beyond This means that a person can clearly see the object at a distance. For a person with normal vision, the near point of the eye is a point at a distance of _ from the eye.Ciliary muscles change the size of the retina. Pupil helps in changing the focal length of the eye lens. Pupil controls the amount of light entering the eye. Which of the following statements is true?.The amount of light entering the eye is controlled by.The muscular diaphragm behind the cornea of the eye is called.additive subtractive multiplicative complimentary Cyan, Magenta, Yellow Cyan, Green, Orange Red and Blue Cyan and Magenta Magenta and Green White and yellow Which of the following is a pair of complimentary colours?.The complimentary colour of yellow is.
both red and green colours are reflected red colour is absorbed green colour is reflected red colour is reflected When light of red colour is incident on a green leaf.When light of red colour is incident on a green leaf, the leaf appears.all other colours are reflected the leaf appears black only green colour is absorbed only green colour is reflected When white light is incident on a green leaf.Which colour of light has the minimum velocity in the glass prism?.Which colour of light scatters maximum due to atmosphere?.What is the time difference between actual sunset and apparent sunset?.Reflection Refraction Scattering Dispersion Due to which phenomenon of light does Tyndall effect occur?.Atmospheric reflection Atmospheric refraction Which phenomenon is responsible for the twinkling of stars?.On retina Behind retina Ahead of retina On pupil Where is the image in eye formed for a person sufferring from the defect of near-sightedness?.Angle of incidence is equal to the angle of refraction. Angle of incidence is greater than the critical angle. Angle of incidence is equal to the critical angle. Angle of incidence is less than the critical angle. For which of the following cases will the total internal reflection of light be possible?.Reflection Refraction Dispersion Absorption Which phenomenon does not play role in the formation of rainbow?._ lens is used to correct the defect of vision termed as presbyopia.Violet, Yellow, Green Yellow, Green, Blue Yellow, Orange, Green Violet, Green, Blue Which colours are reflected when white light is incident on blue pigment?.
0 kommentar(er)
