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 ability of a lens to focus light is determined by its:
A. Curvature
B. Material
C. Color
D. Thickness
Answer: Curvature
The image formed by a convex lens when the object is at the principal focus is:
A. At infinity
B. At the principal focus
C. At the center of curvature
D. Virtual and upright
Answer: At infinity
The phenomenon where light is bent around the edges of an obstacle is called:
A. Diffraction
B. Refraction
C. Reflection
D. Dispersion
Answer: Diffraction
A biconvex lens is also known as a:
A. Double convex lens
B. Concave lens
C. Plane lens
D. Biconcave lens
Answer: Double convex lens
The image formed by a concave mirror when the object is between the mirror and the focal point is:
A. Virtual and larger than the object
B. Real and larger than the object
C. Virtual and smaller than the object
D. Real and smaller than the object
Answer: Virtual and larger than the object
The refractive index of a medium is given by the ratio of the speed of light in vacuum to the speed of light in the medium. True or False?
A. True
B. False
Answer: True
The point where all rays of light appear to diverge from after passing through a lens is known as the:
A. Virtual focus
B. Real focus
C. Optical center
D. Principal axis
Answer: Virtual focus
The image formed by a convex lens when the object is very far from the lens is:
A. Real and very small
B. Virtual and very large
C. Real and very large
D. Virtual and very small
Answer: Real and very small
In optics, the term ‘virtual image’ refers to an image that:
A. Cannot be projected onto a screen
B. Can be projected onto a screen
C. Is formed by real light rays
D. Is formed by diverging light rays
Answer: Cannot be projected onto a screen