Q2. Which of the following is the correct statement about reflection of light?
Q3. The reflection that occurs from a smooth surface is called:
Q4. When light reflects off a rough surface, it undergoes:
Q5. The laws of reflection are valid for:
Q6. Assertion: Diffuse reflection does not follow the laws of reflection. Reason: The laws of reflection apply only to regular reflection.
Q7. Choose the correct statement(s):
Q8. A ray of light strikes a plane mirror at an angle of incidence of 30°. What is the angle of reflection?
Q9. A light ray falls normally on a mirror. What will be the angle of reflection?
Q10. The property of light that allows us to see objects is:
Q11. A highly polished surface is a good:
Q12. A ray of light that strikes a surface is called the ______.
Q13. The angle between the reflected ray and the normal is called the ______.
Q14. The perpendicular line drawn to a reflective surface at the point of incidence is called the ______.
Q15. Find the angle of incidence and angle of reflection respectively from the figure (Mirror surface 35°):
Q16. Which mirror always forms a virtual, erect and diminished image for all positions of the object?
Q17. The image formed by a concave mirror is real, inverted, and the same size as the object when the object is placed:
Q18. The focal length of a spherical mirror is:
Q19. The nature of the image formed by a concave mirror for an object placed beyond C is:
Q20. For an object placed between the pole and focus of a concave mirror, the image formed is:
Q21. Assertion: Convex mirrors are used as rear-view mirrors in vehicles. Reason: Convex mirrors give a wider field of view.
Q22. The point on the principal axis of a spherical mirror where all parallel rays converge (or appear to diverge) is called the ______.
Q23. The mirror which forms only virtual images is the ______ mirror.
Q24. The radius of curvature of a concave mirror is 40 cm. The focal length is ______.
Q25. Assertion: A concave mirror can form a real image. Reason: Real images are always formed on the opposite side of the mirror as the object.
Q26. For a concave mirror, the focal length is considered according to the sign convention.
Q27. Which of the following statements is correct regarding the sign convention for spherical mirrors?
Q28. An object is placed 30 cm in front of a concave mirror with a focal length of 15 cm. Calculate the image distance.
Q29. If an object is placed at infinity in front of a concave mirror, where is the image formed?
Q30. Assertion (A): The object distance (u) is always negative for real objects in front of a mirror. Reason (R): In the sign convention, distances measured against the direction of incident light are negative.
Q31. Which of the following statements is correct regarding the mirror formula?
Q32. An object is placed 20 cm in front of a convex mirror with a focal length of 10 cm. Calculate the image distance.
Q33. What is the magnification produced by a mirror if an object is placed 20 cm from a concave mirror of focal length 10 cm?
Q34. A concave mirror forms a virtual image when:
Q35. Assertion: A convex mirror always forms virtual images. Reason: Focal length of convex mirror is negative.
Q36. Refraction of light through a glass slab occurs because:
Q37. Light bends ______ the normal when it enters a denser medium from a rarer medium.
Q38. The shift between the incident and emergent rays in a glass slab is called ______.
Q39. A ray of light falls normally on a glass slab. The angle of refraction is:
Q40. Assertion (A): A light ray refracts twice in a rectangular glass slab. Reason (R): The two refractions cause angular deviation between incident and emergent rays.
Q41. Assertion (A): Emergent ray is parallel to the incident ray in a rectangular slab. Reason (R): The opposite faces of the slab are parallel.
Q42. When light enters from air to glass, its speed ______.
Q43. Lateral displacement increases when:
Q44. In Snell's law, the constant ratio is known as:
Q45. Select the correct statement regarding the use of spherical mirrors in daily life.
Q46. Which of the following statements is incorrect about image formation by convex lenses?
Q47. An object is placed 30 cm in front of a concave mirror with a focal length of 20 cm. Calculate the image distance.
Q48. Match the Following:
Q49. Which of the following is true about the laws of reflection?
Q50. An object is placed 15 cm from a convex lens of focal length 10 cm. Find the image distance.
Q51. Assertion: A convex mirror always forms a virtual and diminished image. Reason: The reflected rays in convex mirrors actually meet at a point.
Q52. An object is placed 5 cm from a convex lens of focal length 10 cm. Calculate the magnification.
Q53. Which mirror is used in solar cookers and why?