Question Text
Question 1 :
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?<br/>
Question 4 :
If the power of an eye lens increases, then the defect of vision so produced is known as
Question 6 :
State whether true or false :Myopia is caused due to the high converging power of the eye lens.
Question 9 :
By which optical phenomena the splitting of white light into seven constituent colours occur?<br>
Question 11 :
Which of the following observations cannot be explained by Tyndall Effect?
Question 13 :
Why astronauts see dark sky in space unlike blue sky on earth:
Question 14 :
What is the time difference between actual sunset and apparent sunset?
Question 17 :
Name the prism required for obtaining the spectrum of ultraviolet light:<br/>
Question 20 :
Intensity of light ray in a directionafter scattering by small particles (smaller than wavelength):
Question 22 :
Assertion: A piece of red glass is heated till it glows in dark. The colour of glowing glass would be orange.
Reason: Red and orange is complementary colours.