MODERN PUBLICATION-REFRACTION OF LIGHT-EXERCISE
- A convex lens of focal lenght 20 cm is placed coaxially wih a convex m...
Text Solution
|
- An object is placed at a distance 5 cm from a convex lens of focal len...
Text Solution
|
- Where should an object placed from a conveging lens of focal length 20...
Text Solution
|
- Calculate the distance at which an object should be placed in front of...
Text Solution
|
- At what distance should be placed from a convex lens of focal length 1...
Text Solution
|
- A lens placed at a distance of 20 cm from an object produces a virtual...
Text Solution
|
- The image obtained with a convex lens is erect and its lenth is four t...
Text Solution
|
- An object is placed at a distance of 1.5 m from a screen and a convex...
Text Solution
|
- Two lenses of powers +4 D and -14 D form a combination.If a 2 cm size ...
Text Solution
|
- An iluminated object and a screen are placed 90 cm apart.Determine the...
Text Solution
|
- A convex lens is used to obtain a magnified image of an object on a sc...
Text Solution
|
- The image obtained iwth a convex lewns is ereect and its length is fou...
Text Solution
|
- A lens of focal length 12 cm forms an upright image three times the si...
Text Solution
|
- A lens of focal length 12 cm produces a virtual image,whose linear dim...
Text Solution
|
- A lens has a power of +5 D in air.If completely immersed in water,what...
Text Solution
|
- Find the ratio of the powers of a glass lens in water and in air .Give...
Text Solution
|
- A glass convex lens has a power of +10 D.When ths lens is totally imme...
Text Solution
|
- What is the focal length of a convex lens of focal length 30cm in cont...
Text Solution
|
- A concave lens is placed in contact with a convvex lens of focal lengh...
Text Solution
|
- Two thin lenses of focal lenths + 10 cm and - 5 cm are kept in contact...
Text Solution
|