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CBSE Class 11-science Answered

An electron of energy10^3 eV is fired normally to the infinite.Conducting plate from 5mm.Calculate the minimum surface charge density on the conducting plate so that electron does not strike the plate .
Asked by agarrajeev06 | 08 Jan, 2019, 11:23: PM
answered-by-expert Expert Answer
Solution is attached 
Answered by Ankit K | 09 Jan, 2019, 02:36: PM

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CBSE 11-science - Physics
Can you tell an example about a body having 0 velocity and still accelerating?
Asked by veenasangeeth2020 | 30 Jan, 2024, 09:56: AM
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CBSE 11-science - Physics
mention the expression for work done
Asked by abdulkhadirchajjo549 | 06 Dec, 2023, 06:55: PM
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CBSE 11-science - Physics
During calculation of acceleration due to gravity above the surface of earth if we assume that there is an external force opposite to that of Earth's gravity then the cos angle will be 180 between the two forces which is negative(-1), if we put the value in the equation of dw = F.dx then the final value of potential energy is positive which is not possible.how and why??
Asked by anushkaverma.25707 | 24 Aug, 2023, 07:35: PM
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CBSE 11-science - Physics
In the problem no. 34 of concepts of physics HC Verma-1 bit(a) , why is the acceleration of block B is half the acceleration of block A? And why is it that distance travelled by block B is half the distance travelled by block A?
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Asked by sakethrockzz007 | 04 Aug, 2023, 11:17: PM
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CBSE 11-science - Physics
A small spherical object having density 2P is placed inside the liquid of density P and connected to an ideal string of length l whose other end is kept fixed so that the object can move in a vertical cirlcle, minimum speed which must be given at the bottom to just complete the vertical circle.
Asked by dhruvund8769 | 04 Feb, 2023, 11:41: PM
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CBSE 11-science - Physics
when we push the car,workdineyis 0,how
Asked by vaniimtiyaz630 | 12 May, 2022, 12:19: AM
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CBSE 11-science - Physics
explain about conservation of energy with problem
Asked by bandarirohinipriya | 08 Feb, 2022, 09:46: PM
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CBSE 11-science - Physics
please solve the attached problem
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Asked by ayushmishradbb | 11 Jun, 2020, 09:07: AM
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CBSE 11-science - Physics
Can o get more number of conceptual questions???
Asked by mahanteshsurpur5 | 07 May, 2020, 08:13: AM
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CBSE 11-science - Physics
plz elaborate by figure and step by step question no 5
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Asked by Harshhacker2580 | 04 May, 2020, 05:32: PM
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