HARD
12th Telangana Board
IMPORTANT
Earn 100

Find the minimum and maximum deflection angles for a light ray passing through a glass prism with refracting angle θ=60° assuming the refractive index of glass is 1.5.

Important Questions on Ray Optics and Optical Instruments

HARD
12th Telangana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 2 - Ray Optics and Optical Instruments>Exercise>Q 45
A light ray passes through a prism of angle A in a position of minimum deviation. Obtain an expression for a the angle of incidence in terms of the angle of the prism and the angle of minimum  deviation b the angle of refraction in terms of the refractive index of the prism. 
 
HARD
12th Telangana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 2 - Ray Optics and Optical Instruments>Exercise>Q 46
A Iight ray composed of two monochromatic components, passes through a trihedral prism with refracting angle θ=60°. Find the angle Δα between the components of the ray after its passage through the prism, if their respective indices of refraction are equal to 1.515 and 1.520. The prism is oriented to provide the least deflection angle.
HARD
12th Telangana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 2 - Ray Optics and Optical Instruments>Exercise>Q 47
A shaft of light passes through a prism with refracting angle θ and refractive index n. Let α be the diffraction angle of the shaft. Demonstrate that if the shaft of light passes through the prism symmetrically,
(a) the angle α is the least;
(b) the relationship between the angles α and θ is defined by sinα+θ2=nsinθ2.
EASY
12th Telangana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 2 - Ray Optics and Optical Instruments>Exercise>Q 48
What is the cause of rainbow?  
EASY
12th Telangana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 2 - Ray Optics and Optical Instruments>Exercise>Q 49
Explain the formation of a primary rainbow. For which angular range with the horizontal is it visible?
EASY
12th Telangana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 2 - Ray Optics and Optical Instruments>Exercise>Q 50
Explain the formation of a secondary rainbow. For which angular range with the horizontal is it visible?
EASY
12th Telangana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 2 - Ray Optics and Optical Instruments>Exercise>Q 51
Is it possible to see primary and secondary rainbow simultaneously? Under what conditions?
HARD
12th Telangana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 2 - Ray Optics and Optical Instruments>Exercise>Q 52
Explain in brief the formation of a secondary rainbow.