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List of top Science Questions on Refraction of Light
A concave lens of focal length 15 cm forms an image 10 cm from the lens. How far is the object placed from the lens? Draw the ray diagram.
CBSE Class X
Science
Refraction of Light
A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?
CBSE Class X
Science
Refraction of Light
Find the focal length of a lens of power −2.0 D. What type of lens is this?
CBSE Class X
Science
Refraction of Light
The magnification produced by a plane mirror is +1. What does this mean?
CBSE Class X
Science
Refraction of Light
An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed.
CBSE Class X
Science
Refraction of Light
One-half of a convex lens is covered with a black paper. Will this lens produce a complete image of the object? Verify your answer experimentally. Explain your observations.
CBSE Class X
Science
Refraction of Light
Which of the following lenses would you prefer to use while reading small letters found in a dictionary?
CBSE Class X
Science
Refraction of Light
Where should an object be placed in front of a convex lens to get a real image of the size of the object?
CBSE Class X
Science
Refraction of Light
The refractive index of diamond is 2.42. What is the meaning of this statement?
CBSE Class X
Science
Refraction of Light
You are given kerosene, turpentine and water. In which of these does the light travel fastest? Use the information given in Table.
CBSE Class X
Science
Refraction of Light
Find out, from Table, the medium having highest optical density. Also find the medium with lowest optical density.
CBSE Class X
Science
Refraction of Light
Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 10
8
m s
−1
.
CBSE Class X
Science
Refraction of Light
A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?
CBSE Class X
Science
Refraction of Light