If 'A' is the angle of a prism, 'i' is angle of incidence , 'e' is angle of emergence then at minimum angle of deviation 'Dm 'of the light incident on the prism,__________.

'i' + 'e' becomes equal to 'Dm'

If 'A' is the angle of a prism, 'i' is angle of incidence , 'e' is ang

1.	If 'A' is the angle of a prism, 'i' is angle of incidence , 'e' is angle of emergence then at minimum angle of deviation 'Dm 'of the light incident on the prism,__________.
A.	'i' becomes equal to 'e'
B.	'i' + 'e' becomes equal to 'A'
C.	'i' + 'e' becomes equal to 'Dm'
D.	'Dm ' becomes equal to 'A'
Answer» B. 'i' + 'e' becomes equal to 'A'

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If 'A' is the angle of a prism, 'i' is angle of incidence , 'e' is angle of emergence then at minimum angle of deviation 'Dm 'of the light incident on the prism,__________.

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