A. Spherical B. Astigmation C. Curvature D. Chromatic
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A. Diffraction B. Interference C. Polarization D. Photoelectric effect
A. Sun rise early, and sun set late B. Sun rise late, sun set early C. Both take place early D. Both take place in late
(A) Emergency Operations Center director (B) Agency Executive (C) Incident Commander (D) Operations Section Chief
A. Frequency increase B. Frequency decrease C. Wavelength decrease D. Wavelength increase
A. Black B. Blue C. Yellow D. Red
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A. Real and inverted B. Real and erect C. Virtual and erect D. Virtual and inverted
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A. Object angle B. Image angle C. Virtual angle D. Critical angle