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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 focal length of a lens can be calculated using the lens maker’s formula, which involves:
A. Curvature and refractive index
B. Wavelength and temperature
C. Density and thickness
D. Shape and size
Answer: Curvature and refractive index
The virtual image formed by a convex lens when the object is at the principal focus is:
A. Highly enlarged and virtual
B. Real and highly enlarged
C. Virtual and diminished
D. Real and diminished
Answer: Highly enlarged and virtual
The angle of incidence and angle of refraction are related through which law?
A. Snell's Law
B. Newton's Law
C. Ohm's Law
D. Faraday's Law
Answer: Snell's Law
The process of light bending as it passes from air into water is an example of:
A. Refraction
B. Reflection
C. Dispersion
D. Diffraction
Answer: Refraction
The point where light rays converge after passing through a convex lens is called the:
A. Real focus
B. Virtual focus
C. Optical center
D. Principal axis
Answer: Real focus
In a concave mirror, if the object is located beyond the center of curvature, the image will be:
A. Real and diminished
B. Virtual and enlarged
C. Real and enlarged
D. Virtual and diminished
Answer: Real and diminished
In a convex lens, parallel rays of light converge at the:
A. Principal focus
B. Optical center
C. Radius of curvature
D. Virtual focus
Answer: Principal focus
The focal length of a lens is determined by its:
A. Curvature and refractive index
B. Thickness and color
C. Shape and size
D. Density and material
Answer: Curvature and refractive index
When white light passes through a prism, it is split into a spectrum of colors due to:
A. Dispersion
B. Refraction
C. Reflection
D. Diffraction
Answer: Dispersion