No products in the cart.

A concave mirror has a radius …

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

A concave mirror has a radius of curvature of 40 cm to find the position nature and size of the image of the image an object 20 cm High placed in 8 cm in front of mirror

Posted by Deva Deva 1 week, 6 days ago

CBSE > Class 10 > Science

1 answers

Sri Reddy 6 days, 11 hours ago

Given, R=-40cm Height of object (ho)=20cm u=-8cm Height of image(hi )=? v=? WKT f=R÷2 f=-40÷2 f = -20cm 1/f = 1/v + 1/u 1/-20 = 1/v + 1/-8 -1/20 -(-1/8)=1/v -1/20 + 1/8 = 1/v (-8+20)/(8×20)= 1/v 12/(8×20)=1/v 3/40=1/v v=40/3cm (Or) v=13.33cm m=hi/ho = -v/u hi/20=-(40/3)/-8 hi/20=5/3 hi=(5×20)/3 hi=100/3 hi = 33.33cm Therefore, the image is virtual and erect and it is 13.33cm away from the mirror and its size is 33.33cm

1Thank You

ANSWER

Related Questions

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 Kashish Luhach 3 days, 12 hours ago

CBSE > Class 10 > Science

0 answers

An object of height 1.2m is placed before a concave mirror of focal length 20 cm so that a real image first formed at a distance of 60 cm of it , find the position of the object. What will be the height of the image form ?

Posted by Mehak Rana 1 day, 17 hours ago

CBSE > Class 10 > Science

1 answers

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 Dev Singh 3 days, 12 hours ago

CBSE > Class 10 > Science

1 answers

What is octane number

Posted by Sachin Kumar 6 days, 12 hours ago

CBSE > Class 10 > Science

0 answers

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 Jayashri Borde 1 day, 10 hours ago

CBSE > Class 10 > Science

0 answers

What is life processes

Posted by Altamashavz Avz 1 week ago

CBSE > Class 10 > Science

3 answers

Notes for chapter life proccesss

Posted by Kamaldeep Kaur 5 days, 1 hour ago

CBSE > Class 10 > Science

0 answers

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 Atul Yadav 21 hours ago

CBSE > Class 10 > Science