Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

Is the optical centre always at the centre of lens?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

No, only if both the curved surfaces are symmetrical, optical centre will be at the centre.

Answered by | 04 Jun, 2014, 03:23: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Physics
The power of convex lens of focal length 20 cm is
question image
Asked by varma.renu9481 | 17 Mar, 2023, 06:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
A lens of focal length 12cm forms an erect image three times the size of the object. What is the distance between the object and image? 
Asked by bhu.joshi54 | 14 Jun, 2022, 09:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Please answer this  
question image
Asked by kuppusamybose46 | 06 Mar, 2022, 05:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
State three characteristics of the image formed by a convex lens when the object is close to it.
Asked by asifmd2k9 | 06 Feb, 2022, 08:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Explain about lenses
Asked by Roopareddy9844 | 27 Nov, 2021, 06:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Why is a convex lens with smaller focal length and not a longer one used as a magnifcation glass
Asked by Trisha Gupta | 10 Oct, 2021, 03:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
A 4.0 cm tall object is placed perpendicular ( e.at 90) to the principal axis of a convex lens of food length 10 cm . The distance of the object from the lens is 15cm. Find the math, position and size of the image.Also find its magnification.
Asked by Jethanleapon | 03 Oct, 2021, 07:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Why is object placed between 2f1 and f1 in a convex lens projector ?
Asked by pras.rangi | 26 Jul, 2021, 09:06: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
 35. A student focuses the image of a candle flame, placed at about 2 m from a convex lens of focal length 10 cm, on a screen. After that he moves gradually the flame towards the lens and each time focuses its image on the screen. (A) In which direction does he move the lens to focus the flame on the screen? (B) What happens to the size of the image of the flame formed on the screen? (C) What difference is seen in the intensity (brightness) of the image of the flame on the screen? (D) What is seen on the screen when the flame is very close (at about 5 cm) to the lens?
Asked by cskdhoni7ipl | 21 Mar, 2021, 07:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
How many types of image forms due to lenses ? What are those ? Mention the differences
Asked by abdibnzubair | 11 Dec, 2020, 06:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×