A 4 cm tall object is placed on the principal axis of a convex lens
Light (10)A 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12 cm and its sharp image is formed at a distance of 24 cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again ? How will the magnification of the image be affected ?
Answer
- Towards the lens
- Magnification decreases
Exam Year:
2015
Related Questions
- A student traces the path of a ray of light through a rectangular glass slab for the different values of angle of incidence
- Define pole of a spherical mirror
- A student used a device (X) to obtain/focus the image of a well illuminated distant building on a screen
- Why does the sun appear reddish early in the morning
- A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror
- The ability of a medium to refract light is expressed in terms of its optical density