No products in the cart.

How far should an object be …

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

How far should an object be from the pole of a concave mirror of focal length 20cm to form a real image whose size is 1/5th of the size of the object.

Posted by Pooja Kumari ?????? 5 years, 8 months ago

CBSE > Class 10 > Science

3 answers

Arjun Kashyap 5 years, 8 months ago

U=-120 cm

0Thank You

Vivekanand Thallam 5 years, 8 months ago

IS/OS = V/U 1/5 = V/U U = 5V. ........1 1/F.= 1/U.+. 1/V...... Mirror formula 1/20 = 1/5V +. 1/V....... from 1 1/20 = 6/5V 5V = 6 * 20 V = 120 / 5 V = 24 cm then, U. =. 5 * 24 = 120cm Object is to be place at 120cm from the pole of the mirror Short cut method: U = (sum of parts)* focal length =. (1 + 5) * 20 .= 6 *20.= 120cm

1Thank You

Lucifer? Morningstar ? 5 years, 8 months ago

U=-80 cm

0Thank You

ANSWER

Test

Related Questions

What is the importance of variation explain in 4 to 5 points

Posted by Harshal Patil 10 months, 2 weeks ago

CBSE > Class 10 > Science

0 answers

A current of 5 mili mpr is passing through a wire how many electrons are passing through per minute through the area of cross section of the wire

Posted by Sahana Laskar 10 months, 2 weeks ago

CBSE > Class 10 > Science

0 answers

What is the function of petal and sepal.

Posted by Surya Kumar 1 year, 4 months ago

CBSE > Class 10 > Science

1 answers

How does our body respond when adrenaline is Secreated into the blood

Posted by Aadarsh Tripathi 1 year, 5 months ago

CBSE > Class 10 > Science

2 answers

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Pandey Ji 6 months ago

CBSE > Class 10 > Science