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CBSE Notes 2011-2012

A : Astigmatism is a focussing error in two perpendicular lines. B : Stars twinkle due to refraction...

Multiple choice question

A : Astigmatism is a focussing error in two perpendicular
lines.
B : Stars twinkle due to refraction in fluctuating
atmosphere.

unknown

Both 'A' and 'B' are true statements

unknown

Both 'A' and 'B' are false statements.

unknown

A' is true while 'B' is false.

unknown

A' is false while 'B' is true