Multiple Choice Question XX — task. Science CBSE, Class 10.

PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo

1. The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light

is scattered the most by smoke or fog
is scattered the least by smoke or fog
is absorbed the most by smoke or fog
moves fastest in air

2. When white light enters a prism, it gets split into its constituent colours. This is due to

different refractive index for different wavelength of each colour
each colours has same velocity in the prism
prism material have high density
Scattering of light

Previous exercise

Exit to the topic

Next exercise

Send feedback

Did you find an error?

Send it to us!

20. Multiple Choice Question XX

Exercise condition: