Science Test – 22 Apr (Topic-Light) April 22, 2024 Manoj Jha After 40 min Test will close automaticallyScience (Topic-Light) Test Please submit below details before proceed<<Don't worry we wont call its Just for Tracking purpose>> 1 / 13Which object does not reflect more light?A. Polished SurfaceB. Shining SurfaceC. UnpolishedD. Both A and B d c b a 2 / 13The optical phenomena, twinkling of stars, is due to a. Atmospheric reflection b. Total reflection c. Atmospheric refraction d. Total refraction c b d a 3 / 13Which statement is correct about the laws of reflection:(i) The incident ray, normal ray and the reflected ray all lie in the same plane.(ii) The angle of reflection is always equal to the angle of incidence.(iii) The angle of incidence is equal to the angle formed by normal ray.(iv) The angle of reflection is equal to 90 degreeA. Both (i) and (ii)B. Both (ii) and (iii)C. Both (iii) and (iv)D. (i), (ii) and (iv) are correct c a b d 4 / 13The image formed on a cinema screen is an example of:A. Real ImageB. Virtual ImageC. Point ImageD. Plane Image c a d b 5 / 13Image formed by plane mirror is a. Real and erect b. Real and inverted c. Virtual and erect d. Virtual and inverted c b d a 6 / 13A concave mirror gives real, inverted and same size image if the object is placed a. At F b. At infinity c. At C d. Beyond C b d a c 7 / 13In optics an object which has higher refractive index is called a. Optically rarer b. Optically denser c. Optical density d. Refractive index c b a d 8 / 13Also Check: MATHS (Simplification) TEST OF 10th AUGUSTOn which theory nature of light depends upon:A. Wave theoryB. Particle theoryC. Both A and BD. Only A b a c d 9 / 13Focal length of plane mirror is a. At infinity b. Zero c. Negative d. None of these c d b a 10 / 13Name a metal which is the best reflector of light?A. GoldB. SilverC. IronD. Magnesium a d c b 11 / 13The unit of power of lens is a. Metre b. Centimeter c. Diopter d. M-1 c a d b 12 / 13We see the image of our face when we look into the mirror. It is due to:A. InterferenceB. DiffractionC. PolarisationD. Reflection d c a b 13 / 13An incident ray is:A. The point at which incident ray falls on the mirror.B. The ray of light which is sent back by the mirror.C. The ray of light which falls on the mirror surface.D. The ray which makes right angle to the mirror surface. a d c b Your score isLet Everyone know your Achievement. LinkedIn Facebook Twitter VKontakte 0% Restart quiz
