1 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
2 What happens to light when it passes through a convex lens? A It converges B It diverges C It reflects D It disappears
3 What is the magnification of a plane mirror? A Greater than 1 B Equal to 1 C Less than 1 D Infinite
4 Which type of mirror is used in a solar cooker? A Convex mirror B Plane mirror C Concave mirror D Cylindrical mirror
7 What is the phenomenon where light bends around obstacles? A Reflection B Refraction C Diffraction D Scattering
8 What is the phenomenon of light changing direction when passing through a prism called? A Reflection B Refraction C Dispersion D Diffraction
9 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
10 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
11 What is the wavelength range of visible light? A 400 to 700 nanometers B 100 to 300 nanometers C 700 to 1000 nanometers D 300 to 600 nanometers
12 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
13 What is the angle of reflection if the angle of incidence is 45 degrees? A 45 degrees B 90 degrees C 30 degrees D 60 degrees
14 What type of object does not allow light to pass through at all? A Transparent B Translucent C Opaque D Luminous
15 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
16 What is the role of a reflective surface in a flashlight? A To absorb light B To focus light into a beam C To scatter light D To filter light
17 What is the difference between a real image and a virtual image? A A real image cannot be projected; a virtual image can B A real image can be projected; a virtual image cannot C Both can be projected D Neither can be projected
18 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
19 What is the speed of light in a vacuum? A 300,000 km/s B 300,000 m/s C 3,000 km/s D 3,000,000 km/s
20 What is the dispersion of light? A The splitting of light into different colors B The bending of light C The reflection of light D The absorption of light
25 What determines the size of a shadow? A Only the distance from the light source B Only the size of the object C The distance and the size of the light source D The color of the object