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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A convex lens is used in which of the following devices?
A. Magnifying glass
B. Concave mirror
C. Biconcave lens
D. Diffraction grating
Answer: Magnifying glass
A lens with a focal length of -10 cm is a:
A. Concave lens
B. Convex lens
C. Plano-convex lens
D. Biconvex lens
Answer: Concave lens
The focal length of a convex lens is measured from the lens to:
A. The focal point
B. The optical center
C. The image
D. The object
Answer: The focal point
The bending of light around an object or obstacle is known as:
A. Diffraction
B. Refraction
C. Reflection
D. Dispersion
Answer: Diffraction
The power of a lens with a focal length of 5 cm is:
A. 20 diopters
B. 10 diopters
C. 5 diopters
D. 2 diopters
Answer: 20 diopters
The power of a lens is given by the reciprocal of its focal length in:
A. Meters
B. Centimeters
C. Millimeters
D. Inches
Answer: Meters
The power of a lens with a focal length of 2 meters is:
A. 0.5 diopters
B. 2 diopters
C. 1 diopter
D. 5 diopters
Answer: 0.5 diopters
The focal length of a concave mirror is:
A. The distance between the mirror's surface and the focal point
B. The distance between the mirror and the object
C. The distance between the mirror and the image
D. The distance between the optical center and the mirror
Answer: The distance between the mirror's surface and the focal point
The lens that is thinner at the center than at the edges is called a:
A. Concave lens
B. Convex lens
C. Biconvex lens
D. Planoconvex lens
Answer: Concave lens