Login

Remember

Google Login
Register

PYQ's
Questions
Hot!
Unanswered
Tags
Categories
Viva Notes
Ask Question
PDF Notes

An object when placed at 10 cm from convex lens & when placed at 20 cm from it, image produced has same height. Find focal length of lens?

0 votes

243 views

asked May 1, 2021 in Physics by Doubtly (98.9k points)
reopened Jun 29, 2023 by Doubtly

An object when placed at 10 cm from convex lens & when placed at 20 cm from it, image produced has same height. Find focal length of lens?

physics25feb2021

Your comment on this question:

Please read the guide .

Your name to display (optional):

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Anti-spam verification:

To avoid this verification in future, please log in or register.

Your answer

Please answer the question in detail

Your name to display (optional):

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

Anti-spam verification:

To avoid this verification in future, please log in or register.

1 Answer

0 votes

answered May 1, 2021 by Doubtly (98.9k points)
selected Jun 29, 2023 by Doubtly

Best answer

The correct answer is 15 cm

Your comment on this answer:

Please read the guide .

Your name to display (optional):

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Anti-spam verification:

To avoid this verification in future, please log in or register.

Related questions

0 votes

1 answer 124 views

A concave lens of focal length 15 cm forms an image 10 cm from the lens. How far is the object placed from the lens?

asked Dec 15, 2021 in Light – Reflection and Refraction by Doubtly (98.9k points)

0 votes

1 answer 252 views

An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm.

asked Dec 15, 2021 in Light – Reflection and Refraction by Doubtly (98.9k points)

0 votes

0 answers 155 views

5 cm high object is placed at a distance of 25 cm from a converging lens of focal length of 10 cm.

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 92 views

A convex mirror has a focal length of 18cm. The image of an object kept in front of the mirror is half the height of

asked Apr 14, 2022 in Chapter 11 Reflection of Light by Doubtly (98.9k points)

0 votes

1 answer 228 views

An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm.

asked Dec 15, 2021 in Light – Reflection and Refraction by Doubtly (98.9k points)

0 votes

1 answer 1.1k views

A screw gauge shows 8 division on circular scale below reference line when no object is placed. Number of division on circular scale

asked May 1, 2021 in Physics by Doubtly (98.9k points)

physics25feb2021

Doubtly is an online community for engineering students, offering:

Free viva questions PDFs
Previous year question papers (PYQs)
Academic doubt solutions
Expert-guided solutions

Get the pro version for free by logging in!

Most popular tags

jeemain geography-10th engineering physics semester 5 web computing

5.7k questions

5.1k answers

108 comments

535 users

Send feedback
About
faq
Linkedin
Terms of service
disclaimer
copyright
privacy policy
comments
XML Sitemap

Doubtly

...