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CBSE Class 11-science Answered

Object length u=50±0.2cm Image length v=80±0.2cm Find focal length.
Asked by simasarkar1968 | 26 May, 2020, 12:35: PM
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A s s u m i n g space t h e s e space d i m e n s i o n s space f o r space t h e space l e n s 1 over v minus 1 over u equals 1 over f 1 over 80 minus fraction numerator 1 over denominator negative 50 end fraction equals 1 over f fraction numerator 5 plus 8 over denominator 400 end fraction equals 1 over f f equals 400 over 13 M a x i m u m space e r r o r fraction numerator increment f over denominator f squared end fraction equals fraction numerator increment u over denominator u squared end fraction plus fraction numerator increment v over denominator v squared end fraction fraction numerator increment f over denominator open parentheses begin display style 400 over 13 end style close parentheses squared end fraction equals fraction numerator 0.2 over denominator 50 squared end fraction plus fraction numerator 0.2 over denominator 80 squared end fraction O n space s o l v i n g space t h e space t o t a l space f o c a l space l e n g t h space c i s f plus increment f.
Answered by Utkarsh Lokhande | 26 May, 2020, 08:29: PM
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CBSE 11-science - Physics
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Asked by rajeshabirami27 | 07 May, 2024, 04:31: PM
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CBSE 11-science - Physics
A train starts from a station with a constant acceleration of 4 m/s2. Two seconds later another train passes the same station on the same line and in the same direction with a constant velocity. Find the velocity if the collision is first averted
Asked by yatin1043 | 06 May, 2024, 02:47: PM
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CBSE 11-science - Physics
1
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Asked by pc2091054 | 05 May, 2024, 10:43: AM
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CBSE 11-science - Physics
answer me
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Asked by sheikhsaadat24 | 17 Apr, 2024, 09:41: PM
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CBSE 11-science - Physics
.A SHM is expressed by the equation x = A cos (ωt + φ) and the phase angle φ =0. Draw graphs to show variation of displacement, velocity and acceleration for one complete curve in SHM.
Asked by sy123946 | 07 Apr, 2024, 04:23: PM
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CBSE 11-science - Physics
the dimension of stopping potential vo in photoelectric effect in units of plank's constant 'h',speed of light 'c' and gravitational constant 'G' and ampereA
Asked by derhebha955 | 03 Apr, 2024, 09:03: AM
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CBSE 11-science - Physics
In this que while solving it we take D F of alpha =D.F of beta.Why is it so?
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Asked by sumedhasingh238 | 29 Mar, 2024, 05:15: PM
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CBSE 11-science - Physics
In physics if 2 quantities are dimensionless then their dimensional formula are equal?
Asked by sumedhasingh238 | 28 Mar, 2024, 11:10: PM
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CBSE 11-science - Physics
7. State the relation between maximum range and maximum height of the projectile if the angle of projection is 45 deg
Asked by roshnibudhrani88 | 23 Mar, 2024, 05:52: PM
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CBSE 11-science - Physics
The second overtone of a pipe closed at one end has the same frequency as the third overtone of a pipe open at both ends. Compare the length of the pipes
Asked by emad.amd | 21 Mar, 2024, 12:00: PM
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