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(d) dark
(d) infinity to 25 cm
(b) red coloured light is scattered the least from atmosphere particles
(b) Scattering of light
(c) violet and blue lights get scattered more than lights of all other colors by the atmosphere
(b) black
(c) blue light has been mostly scattered but red light has scattered the least
(a) light is least scattered
(c) sun is visible 2 minutes before actual sunrise
(c) Refraction, dispersion and internal reflection.
An astronaut land his spacecraft on the surface of moon and observes the sky. He will find the colour of the sky as
(d) dark
(d) dark
See lessThe range of vision of a normal human eye is from
(d) infinity to 25 cm
(d) infinity to 25 cm
See lessDanger signals installed at airports and at the top of tall buildings all of red colour.These signals are visible from a distance. It is because
(b) red coloured light is scattered the least from atmosphere particles
(b) red coloured light is scattered the least from atmosphere particles
See lessWhich of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset ?
(b) Scattering of light
(b) Scattering of light
See lessThe clear sky appears blue because
(c) violet and blue lights get scattered more than lights of all other colors by the atmosphere
(c) violet and blue lights get scattered more than lights of all other colors by the atmosphere
See lessIf the earth had no atmosphere, the sky would have looked.
(b) black
(b) black
See lessThe sky appears reddish at the sunset due to the fact, that
(c) blue light has been mostly scattered but red light has scattered the least
(c) blue light has been mostly scattered but red light has scattered the least
See lessAt noon the sun appears white as
(a) light is least scattered
(a) light is least scattered
See lessOn account of atmospheric refraction
(c) sun is visible 2 minutes before actual sunrise
(c) sun is visible 2 minutes before actual sunrise
See lessWhich of the following phenomena of light are involved in the formation of a rainbow ?
(c) Refraction, dispersion and internal reflection.
(c) Refraction, dispersion and internal reflection.
See less