The image of a needle placed 45 cm from ...

The image of a needle placed `45 cm` from a lens is formed on a screen placed `90 cm` on the other side of lens. Find displacement of image if object is moved `5 cm` away from lens.

Text Solution

Verified by Experts

The correct Answer is:

15 cm

Topper's Solved these Questions

RAY OPTICS
PRADEEP|Exercise Problem For Practice(c)|27 Videos
RAY OPTICS
PRADEEP|Exercise Problem For Practice(d)|35 Videos
RAY OPTICS
PRADEEP|Exercise Long Answer (a)|5 Videos
PROPERTIES OF BULK MATTER
PRADEEP|Exercise Multiple choice questions|7 Videos
SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
PRADEEP|Exercise Assertion- Reason Type questions|20 Videos

Similar Questions

Explore conceptually related problems

The image of the needle placed 10 cm from a lens is formed on a wall 20 cm on the other side of the lens. Find focal length of the lens and size of image formed, if the size of object needle is 2.5 cm .

A needle of height 5 cm placed 45 cm from a lens forms an image on a screen placed 90 cm on the other side of the lens the type of lens and its focal length are

A candle placed 25 cm from a lens, forms an image on a screen placed 75 cm on the other end of the lens. The focal length and type of the lens should be

An object placed at 20 cm from a lens, forms an image on a screen placed 60 cm on the other side of the lens. What is the focal length and type of the lens ?

A needle placed 45 cm from a lens forms an image on the screen placed 90 cm on the other side of the lens. Identify the type of the lens and determine its focal length. What is the size of the image if the size of needle is 5.0 cm ?

The image of a candle flame formed by a lens is obtained on a screen placed on the other side of the lens. If the image is three times the size of the flame and the distance between lens and image is 80 cm, at what distance should the candle be placed from the lens ? What is the nature of the image at a distance of 80 cm from the lens ?

A needle placed 45 cm from a lens forms an image on a screen placed 90 cm on other side of the lens. Identify the type of lens and determine its focal length, What is the size of the image, if the size of the needle is 5 cm?

PRADEEP-RAY OPTICS-Problem For Practice(b)

A convergent beam of light passes through a diverging lens of focal le...
Text Solution
|
The image obtained with a convex lens is erect and its length is 4 tim...
Text Solution
|
An illuminated object and a screen are placed 90 cm apart. What is the...
Text Solution
|
A convex lens of focal length 25 cm is placed co-axially in contact wi...
Text Solution
|
The radius of curvature of the faces of a double convex lens are 10 cm...
Text Solution
|
A biconvex lens has focal length (2)/(3) times the radius of curvature...
Text Solution
|
An object is placed at a distance of 1.5 m from a screen and a convex ...
Text Solution
|
Find the focal length and power of a convex lens, which when placed in...
Text Solution
|
Find the focal length and nature of lens which should be placed in con...
Text Solution
|
Two lenses, one diverging of power 2 diopyre and the other converging ...
Text Solution
|
Two lenses of power + 10 D and - 5 D are placed in contact, (i) Calc...
Text Solution
|
A point object is placed 60 cm in front of a convex lens of focal leng...
Text Solution
|
A convex lens of focal length 15 cm, and a concave mirror of radius of...
Text Solution
|
Fig. shows a plane mirror M placed at a distance of 10 cm from a conca...
Text Solution
|
Monochramatic light is incident on the pLane interface AB between two ...
Text Solution
|
The image of a needle placed 45 cm from a lens is formed on a screen p...
Text Solution
|
A biconvex thin lens is prepared from glass (mu=1.5), the two bounding...
Text Solution
|
A concave convex figure lens made of glas (mu=1.5) has surface of radi...
Text Solution
|
A converging beam of light forms a sharp image on a screen. A lens is ...
Text Solution
|
Rays of light are falling on a convex lens of focal length 40 cm. As s...
Text Solution
|