Optics MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
Master Optics with Expert Online Physics Exams
Enhance your understanding of Optics with focused online physics exams designed to sharpen your preparation. These resources offer comprehensive insights into basic physics concepts, including light, reflection, refraction, and lens systems. Utilize practice tests and MCQ answers to deepen your grasp of optical principles and phenomena. Focusing on force and motion MDCAT MCQs alongside optics-related practice questions will significantly boost your exam performance.
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The angle at which light is completely reflected back into a medium is known as:
A. Critical angle
B. Angle of incidence
C. Angle of reflection
D. Angle of refraction
Answer: Critical angle
The distance from the optical center of a lens to the principal focus is called the:
A. Focal length
B. Radius of curvature
C. Optical power
D. Refractive index
Answer: Focal length
A concave lens always forms an image that is:
A. Virtual and smaller than the object
B. Real and larger than the object
C. Virtual and larger than the object
D. Real and the same size as the object
Answer: Virtual and smaller than the object
When light passes through a medium with a higher refractive index to a lower refractive index, it bends:
A. Away from the normal
B. Towards the normal
C. Perpendicular to the normal
D. Parallel to the surface
Answer: Away from the normal
The phenomenon of light splitting into a spectrum of colors as it passes through a prism is known as:
A. Dispersion
B. Refraction
C. Reflection
D. Diffraction
Answer: Dispersion
The ability of a lens to focus light depends on its:
A. Curvature
B. Color
C. Material
D. Thickness
Answer: Curvature
The point where parallel rays of light converge after passing through a convex lens is called the:
A. Focus
B. Virtual focus
C. Principal axis
D. Center of curvature
Answer: Focus
A plane mirror forms an image that is:
A. Virtual and the same size as the object
B. Real and smaller than the object
C. Real and the same size as the object
D. Virtual and larger than the object
Answer: Virtual and the same size as the object
The phenomenon where light is bent as it passes through an object is known as:
A. Refraction
B. Reflection
C. Diffraction
D. Dispersion
Answer: Refraction