Light – Reflection and Refraction
Which of the following mirror can form a real, inverted, and magnified image?
The focal length of a spherical mirror is 20 cm. What is its radius of curvature?
When a ray of light travels from a rarer medium to a denser medium, it bends:
The power of a lens is -2.5 D. What is its focal length?
Which mirror is commonly used as a rear-view mirror in vehicles?
Magnification produced by a rear-view mirror fitted in vehicles is:
The angle of incidence is equal to the angle of reflection according to:
What is the refractive index of diamond approximately?
If an object is placed at a distance of 10 cm in front of a convex mirror of focal length 15 cm, the image distance is:
A convex lens is also known as:
The SI unit of power of a lens is:
Which of the following lenses would you prefer to use while reading small letters found in a dictionary?
Snell's law of refraction states that the ratio of sine of angle of incidence to the sine of angle of refraction is:
An object is placed at the focus of a concave mirror. Where is the image formed?
The magnification (m) of a mirror is given by which of the following expressions?
Which of the following phenomena is responsible for the bending of light when it passes from one medium to another?
If the magnification of a lens has a plus (+) sign, the image formed is:
A ray of light passing through the optical center of a lens goes through:
The absolute refractive index of a medium is calculated using the speed of light in vacuum (c) and speed of light in the medium (v) as:
The focal length of a plane mirror is:
The absolute refractive index of transparent medium A is 2.0 and that of medium B is 1.5. What is the speed of light in medium A if the speed of light in vacuum is $3 \times 10^8 \text{ m/s}$?
The refractive index of a diamond is 2.42. What is the meaning of this statement in relation to the speed of light?
Which of the following ray diagrams is correct for a ray of light incident parallel to the principal axis of a concave mirror?
The absolute refractive index of water is 1.33. What is the speed of light in water? (Speed of light in vacuum = $3 \times 10^8$ m/s)
What is the focal length of a convex mirror whose radius of curvature is $32\text{ cm}$?