List of top Physics Questions on Light asked in TBSE Class X Board

Why does a clear sky appear blue?
The radius of curvature of a spherical mirror is \(20\text{ cm}\). What is its focal length?
What types of images are formed by a convex lens?
What is meant by "refractive index of water is \(1.33\)"?
An object of size \(4.0\text{ cm}\) is placed \(25.0\text{ cm}\) in front of a concave mirror of focal length \(15.0\text{ cm}\). At what distance from the mirror should a screen be placed to obtain a sharp image? Determine the nature and size of the image.
A doctor prescribed a corrective lens of power \(+1.5\text{ D}\). Determine the focal length of the lens. Is the prescribed lens diverging or converging?
Which type of mirror is used in the rearview mirror of vehicles and why?
The refractive index of glass is \(1.5\) and that of water is \(1.33\). In which medium will light bend more? Explain with reason.
What is meant by accommodation of the eye?
A student sitting in the back row has difficulty seeing the blackboard. What kind of defect might the student's eye have? How can it be corrected?
A person's near point is \(50\text{ cm}\). His far point is \(2\text{ m}\). What is the name of the defect of vision he is suffering from?
Suggest the use of suitable lenses for the correction of each defect mentioned in the previous question.
To get a real image of the same size as the object, where should the object be placed in front of a convex lens?
The action of which of the following changes the focal length of the eye lens?
Which type of mirror is used by dentists to examine teeth?