a) Engineer’s square having stock and blade set at 90°
b) A constant deviation prism having the angle of deviation between the incident ray and reflected ray, equal to 90°
c) A constant deviation prism having the angle of deviation between the incident ray and reflected ray, equal to 45°
d) Used to produce interference fringes
b) A constant deviation prism having the angle of deviation between the incident ray and reflected ray, equal to 90°
c) A constant deviation prism having the angle of deviation between the incident ray and reflected ray, equal to 45°
d) Used to produce interference fringes
ISRO Scientist-2010
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