1 What is the phenomenon of light bouncing off a surface called? A Refraction B Reflection C Diffraction D Absorption
2 What is the function of a periscope? A To bend light around corners B To reflect light using mirrors C To focus light D To absorb light
3 What is the image formed by a plane mirror? A Real and inverted B Virtual and erect C Real and erect D Virtual and inverted
5 What is the phenomenon where light bends around obstacles? A Reflection B Refraction C Diffraction D Scattering
6 What causes the formation of a rainbow? A Reflection of light B Refraction and dispersion of light C Scattering of light D Diffraction of light
8 What is the use of a convex mirror in vehicles? A To magnify objects B To provide a wider field of view C To focus light D To invert images
10 What is a shadow? A A reflection of light B A dark area formed when light is blocked C A color of light D A type of mirror
11 Which of the following surfaces would reflect the most light? A Black cloth B White paper C Dark wood D Green leaf
12 What is the range of visible light spectrum? A 100-200 nm B 400-700 nm C 700-1000 nm D 1000-2000 nm
13 What is the purpose of a convex lens in a magnifying glass? A To diverge light B To converge light and create a magnified image C To reflect light D To scatter light
14 What type of lens is thinner in the middle and thicker at the edges? A Concave lens B Convex lens C Plano-convex lens D Cylindrical lens
15 What is the bending of light as it passes from one medium to another called? A Reflection B Diffraction C Refraction D Scattering
16 What is the principal focus of a concave mirror? A The point where light rays converge B The point where light rays diverge C The center of curvature D The surface of the mirror
17 What is the effect of a concave lens on parallel light rays? A It converges them B It diverges them C It reflects them D It absorbs them
19 What is the magnification of a plane mirror? A Greater than 1 B Equal to 1 C Less than 1 D Infinite
20 What type of object does not allow light to pass through at all? A Transparent B Translucent C Opaque D Luminous
21 What is the law of reflection based on? A The angle of incidence equals the angle of reflection B The angle of incidence is twice the angle of reflection C The angle of incidence is half the angle of reflection D The angle of incidence is unrelated to the angle of reflection
22 What is the phenomenon of light changing direction when passing through a prism called? A Reflection B Refraction C Dispersion D Diffraction
23 What is the center of curvature of a spherical mirror? A The center of the sphere from which the mirror is made B The center of the mirror surface C The focal point D The vertex of the mirror
24 According to the law of reflection, the angle of incidence is equal to the: A Angle of refraction B Angle of reflection C Angle of deviation D Angle of incidence
25 What type of image does a convex mirror always produce? A Real and inverted B Virtual and erect C Real and erect D Virtual and inverted