KERALA PSC STUDY NOTES -PHYSICS (PART-1)

   KERALA PSC STUDY NOTES -PHYSICS (PART-1)

          KERALA PSC STUDY NOTES -PHYSICS (PART-1)

 KERALA PSC STUDY NOTES -PHYSICS (PART-1)

LIGHT

study of light ?

ans:optics

speed of light?

ans:3*10^8 m/s

time taken by sun light to reach earth?

ans:8 minute 20 second(500second)

time taken by moonlight to reach earth?

ans:1.3 second

light travels fastest in?

ans:vaccum

scientist who discovered that the light travels fastest in vaccum?

ans:leono foucault

speed of light was first measured by?

ans:ole christian romer

the medium in which the speed of light is least?

ans:diamond

the medium in which density of light is maximum?

ans:diamond

the medium in which density of light is minimum?

ans:vaccum

particle which travels faster than light?

ans:tachyons

tachyons were discovered by?

ans:ECG sudarsan

the scientiest who proved that light is an electro magnetic wave?

ans:henrich hertz

quantum theory was proposed by?

ans:max plank

corpuscular theory of light was proposed by?

ans:issic newton

wave theory of light was proposed by?

ans:christian huygens

scientiest who discovered that sun light consists of 7 colours?

ans:issic newton

the principle of three primary colors was proposed by?

ans:thomas young

unit used to measure the distance between stars?

ans:light years

unit of wave length of light?

ans:angstrom



 KERALA PSC STUDY NOTES -PHYSICS (PART-1)

                                                                  PART-2-PHYSICS