AP EAMCET2003PhysicsRay Optics
A prism of refractive index and angle A is placed in the minimum deviation position. If the angle of minimum deviation is A , then the value of A in terms of is :
Options
- A⁻¹ ( 2 )
- B⁻¹ -1 2
- C2 ⁻¹ ( 2 )
- D⁻¹ ( 2 )
Correct answer
C. 2 ⁻¹ ( 2 )
Step-by-step solution
Refractive index of material of prism = ( A+ _m 2 ) A 2 but _m=A = A+A 2 A 2 = A A / 2 = 2 A / 2 A / 2 A / 2 A 2 = 2 A 2 = ⁻¹ ( 2 )A=2 ⁻¹ ( 2 )