English

An object is placed at a distance of more than 40 cm from a convex lens of focal length 20 cm. The image formed is real, inverted and ______. - Physics

Advertisements
Advertisements

Question

An object is placed at a distance of more than 40 cm from a convex lens of focal length 20 cm. The image formed is real, inverted and ______.

Fill in the Blanks
Advertisements

Solution

An object is placed at a distance of more than 40 cm from a convex lens of focal length 20 cm. The image formed is real, inverted and diminished.

shaalaa.com
  Is there an error in this question or solution?
Chapter 5: Refraction through a Lens - EXERCISE - 5 (B) [Page 121]

APPEARS IN

Selina Physics [English] Class 10 ICSE
Chapter 5 Refraction through a Lens
EXERCISE - 5 (B) | Q 29. (a) | Page 121

RELATED QUESTIONS

A lens forms an upright and diminished image of an object when the object is placed at its focal point. Name the lens and draw a ray diagram to show the image formation.


A converging lens forms the image of an object placed in front of it, beyond 2F2 of the lens. State three characteristics of the image.


Draw a ray diagram to show how a converging lens can form an image of the sun. Hence give a reason for the term ‘burning glass’ for a converging lens used in this manner.


An object is placed at a distance 2f from a convex lens of focal length f. The size of the image formed is ______ that of the object.


An object is placed at a distance 5 cm from a convex lens of focal length 10 cm. The image formed is virtual, upright and _____.


Where should an object be placed so that a real and inverted image of the same size is obtained by a convex lens?


A small bulb is placed at the principal focus of a convex lens. When the bulb is switched on, the lens will produce


An object is placed at a distance 20cm from a convex lens of focal length 10cm. Find the image distance and nature of the image.


Sudha finds out that the sharp image of the window pane of her science laboratory is formed at a distance of 15 cm from the lens. She now tries to focus the building visible to her outside the window instead of the window pane without disturbing the lens. In which direction will she move the screen to obtain a sharp image of the building? What is the approximate focal length of this lens?


Complete the following table based on image formation by convex lens:

Position of Object Position of Image Nature of Image
At infinity (a) ______ Real and inverted and highly diminished image
Beyond 2F1 (b) ______ (c) ______
At 2F1 (d) ______ Real, inverted, same size (as object) image
Between F1 and 2F1 Beyond 2F2 (e) ______
At focus F1 (f) ______ Real, inverted and highly enlarged image

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×