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CBSE Class 11-science Answered

kilo is a prefix then why kilo gram is the si unit of mass instead of gram?
Asked by aromal | 12 Jun, 2011, 01:44: AM
answered-by-expert Expert Answer
In SI system of units, those units which are neither too small nor too large are used to represent the fundamental quantities and we generally come across these scales in our daily life.  
Answered by | 13 Jun, 2011, 11:14: AM

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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
Power unit
Asked by rosysahu678 | 02 Mar, 2024, 06:09: PM
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CBSE 11-science - Physics
frequency of vibration (n) of a stretched string depends on its length (l) , tension (t) and linear mass density taking proportionality constant k=½ find a relation between them
Asked by ss4172380 | 14 Nov, 2023, 08:05: AM
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CBSE 11-science - Physics
Calculate the wave number of a wave with a frequency of 6.2 *10^7
Asked by doddisriman | 29 Oct, 2023, 09:43: PM
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CBSE 11-science - Physics
name to fundamental forces in nature
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Asked by sanketnaik338 | 04 Oct, 2023, 09:13: PM
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CBSE 11-science - Physics
Calculate the angle of (a) , 1°(b) 1`(minute of arc or arcmin) and (c) 1``(second of arc second) in radius. Use 360°=2π rad, 1°=60` and 1`=60``.
Asked by mayankvaram96 | 01 Oct, 2023, 06:01: AM
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CBSE 11-science - Physics
The respective number of significant figures for the numbers 23.023; 0.0003 and 2.1´10-3 are (a) 4, 4, 2                     (b) 5, 1, 2                     (c) 5, 1, 5                     (d) 5, 5, 2
Asked by Naveensharma2007 | 26 Jun, 2023, 06:54: PM
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CBSE 11-science - Physics
if the momentum of body decreases by 30% its kinetic energy decreased by
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Asked by bhargavchary19 | 23 Dec, 2022, 07:33: AM
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