CBSE Class 11-science Questions and Answers

If you are looking for Class 11 Science online study materials, you’ve come to the right place. On TopperLearning, you’ll find quality e-learning materials for subjects such as Physics, Chemistry, Biology, Mathematics, and Hindi. These study materials include sample papers, MIQs, textbook solutions, video lessons and more.

Understand the course structure and exam paper pattern by going through the latest CBSE Class 11 Science syllabus. With access to the accurate list of syllabus topics, you’ll be able to create an appropriate study plan for your exams. Revision is key to remembering the key concepts learned in class. Get free access to the important revision notes for CBSE Class 11 science prepared by TopperLearning’s experts. Also, improve your Hindi writing skills with textbook solutions or understand concepts in Physics with our conceptual videos.

You just need to access your TopperLearning dashboard for utilising our compiled CBSE Class 11 Science study resources such as sample papers, NCERT solutions, syllabus, videos, revision notes and online mock tests. Study complex topics as per your convenience with our 24/7 access to CBSE Class 11 Science resources and score well in your CBSE final exams for Class 11.

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CBSE XI Science - Physics

A 0.5 kg mass is rotated in a horizontal circle of radius 20cm . Calculate the centripetal force acting on it , if its angular speed of revolution is 0.8rad/s 

Asked by prakashpote873 | 7th Apr, 2020, 06:39: PM

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CBSE XI Science - Physics

a car moving with a velocity of 20m/s stopped in a distance of 40 m . if the same car is travelling at double the velocity the distance travelled by it for same retardation is?

Asked by julianabalaswamy762 | 6th Apr, 2020, 05:27: PM

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CBSE XI Science - Chemistry

For  1.34 10-3  moles of KBrO3 to reduce into bromide,  4.02 103 mole of n x ions are needed.  New oxidation state of X would be :

Asked by chiranjeevanidodda | 6th Apr, 2020, 01:27: PM

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CBSE XI Science - Chemistry

What is Py + Py bond

Asked by utkarshnikam85.tl | 6th Apr, 2020, 12:13: PM

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CBSE XI Science - Mathematics

(r+1)th term in the expansion of (x+a)^n will be   

Asked by gaveshjain355 | 4th Apr, 2020, 11:35: AM

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CBSE XI Science - Chemistry

25ml of a solution containing HCl was treated with excess of M/5 KIO3 and KI solution of unknown concentration where I2 liberated is titrated against a standard solution of 0.021M Na2S2O3 solution whose 24ml were used up. Find the strength of HCl and volume of KIO3 solution consumed.

Asked by abhishekangadi2002 | 2nd Apr, 2020, 12:46: PM

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CBSE XI Science - Physics

Water drops are falling in regular intervals of time from top of height 9m. If 4th drop begins to fall when 1st drop reaches the ground, find the positions of 2nd and 3rd drops from the tower.

Asked by malaysaha.80 | 2nd Apr, 2020, 11:37: AM

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CBSE XI Science - Mathematics

Find the domain of √(sin(cosx)).

Asked by anshukumar9798373284 | 1st Apr, 2020, 11:20: AM

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CBSE XI Science - Biology

A tendril is not seen in tall trees. Why

Asked by rajesh.rkbgp | 31st Mar, 2020, 05:11: PM

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CBSE XI Science - Physics

difference b/w faraday and pluncker experiment  

Asked by prakriti.a.nagar | 30th Mar, 2020, 12:59: PM

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