MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

What is the refraction of light? Define relative refractive index and absolute refractive index. Explain, with neatly drawn diagrams, how refraction takes place in the following cases from air to glass. 

Important Questions on Refraction of Light

MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 13 - Refraction of Light>EXERCISE 13>Q 11
Explain, with neatly drawn diagrams, how refraction takes place from water to air.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 13 - Refraction of Light>EXERCISE 13>Q 12
Why does a straight stick appear bent when partly immersed in water?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 13 - Refraction of Light>EXERCISE 13>Q 12
Why does a vessel full of water appear much shallower than it actually is?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 13 - Refraction of Light>EXERCISE 13>Q 12
Why does the sun remain in view for some time after it has already set?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 13 - Refraction of Light>EXERCISE 13>Q 12
Why does a metallic ball painted black with a lamp appear shining when immersed in water? 
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 13 - Refraction of Light>EXERCISE 13>Q 12
Why does a crack in a glass pane appear shining?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 13 - Refraction of Light>EXERCISE 13>Q 12
An empty test-tube, partly immersed and held obliquely in water, appears shining over the immersed part. Why? 
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 13 - Refraction of Light>EXERCISE 13>Q 12
On warm sunny days, asphalted roads often appear to be covered with pools of water some distance ahead which disappears when approached. Why?