Physics Multiple Choice Questions PDF

🙂: Generate multiple-choice questions 🤖 Smallpdf.com: Questions: 1. At what distance is the image formed from the glass surface when u = -100 cm, R = +20 cm, n1 = 1, and n2 = 1.5? A. 50 cm B. 100 cm C. 150 cm D. 200 cm 2. What is the magnification of the image formed when the object dist...

🙂: Generate multiple-choice questions 🤖 Smallpdf.com: Questions: 1. At what distance is the image formed from the glass surface when u = -100 cm, R = +20 cm, n1 = 1, and n2 = 1.5? A. 50 cm B. 100 cm C. 150 cm D. 200 cm 2. What is the magnification of the image formed when the object distance u = -5 cm? A. -3 B. -2 C. -1 D. 0 3. Why must both the objective and the eyepiece of a compound microscope have short focal lengths? A. To achieve greater magnifying power B. To reduce the size of the microscope C. To improve image quality D. To increase the distance between lenses 4. What happens to the light signal in optical fibers? A. It is absorbed B. It undergoes total internal reflection C. It is refracted D. It is scattered 5. What is the relationship between the magnifying power of a simple microscope and the focal length of the lens? A. Directly proportional B. Inversely proportional C. Independent D. Equal Answers: 1. B 2. A 3. A 4. B 5. B 🙂: Generate more multiple-choice questions 🤖 Smallpdf.com: Questions: 1. At what distance is the image formed from the glass surface when using the given parameters? A. 50 cm B. 100 cm C. 150 cm D. 200 cm 2. What is the relationship between the magnifying power of a simple microscope and the focal length of the lens? A. Directly proportional B. Inversely proportional C. Independent D. None of the above 3. Why must both the objective and the eyepiece of a compound microscope have short focal lengths? A. To increase magnification B. To reduce size C. To improve image quality D. To decrease cost 4. What happens to the angular magnification when the eye is moved back while viewing through a magnifying glass? A. It increases B. It decreases C. It remains the same D. It becomes zero 5. What is the refractive index of the liquid required to make a lens with n = 1.47 disappear? A. 1.33 B. 1.47 C. 1.55 D. 1.00 6. What is the angle of minimum deviation measured for a prism made of glass of unknown refractive index? A. 30° B. 40° C. 50° D. 60° 7. What is the focal length of the lens required if the radius of curvature is to be determined for a double-convex lens made from glass with a refractive index of 1.55? A. 10 cm B. 20 cm C. 30 cm D. 40 cm 8. What is the effect of using a convex lens of smaller and smaller focal length on magnifying power? A. Increases magnifying power B. Decreases magnifying power C. No effect D. Only affects image quality 9. What is the purpose of using multi-component lenses in modern microscopes? A. To reduce cost B. To improve image quality C. To increase size D. To simplify design 10. What is the distance at which the beam converges when a convex lens of focal length 20 cm is placed 12 cm from the point P? A. 8 cm B. 20 cm C. 32 cm D. 12 cm Answers: 1. B 2. B 3. A 4. C 5. B 6. B 7. B 8. A 9. B 10. C