|
A force of (2500 + 5) N is applied over an area of (0.32 ± 0.02) m2. Calculate the pressure exerted over the area
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|
0
|
11256
|
August 16, 2016
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|
The voltage across a lamp is (6.0 ± 0.1) volt and the current passing through it is (4.0 ± 0.2) ampere. Find the power consumed by the lamp
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|
1
|
20424
|
April 20, 2019
|
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Distinguish between dimensional variables and dimensional constants. Give example too
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|
0
|
11538
|
December 22, 2016
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|
The sides of a rectangle are (10.5 ± 0.2) cm and (5.2 ± 0.1) cm. Calculate its perimeter with error limits
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|
0
|
9536
|
December 22, 2016
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|
Precise measurements of physical quantities are need of science
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|
1
|
1607
|
December 22, 2016
|
|
Answer the following
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1
|
2121
|
December 22, 2016
|
|
Explain the statement clearly
|
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1
|
1054
|
December 22, 2016
|
|
The length, breadth and thickness of a rectangular sheet of metal
|
|
1
|
3845
|
December 22, 2016
|
|
State the number of significant figures in the following
|
|
1
|
3796
|
December 22, 2016
|
|
The voltage across a lamp
|
|
1
|
928
|
December 22, 2016
|
|
If displacement of a body
|
|
1
|
3337
|
December 22, 2016
|
|
A jeweller put a diamond weighing 5.42 g in a box
|
|
1
|
7224
|
December 22, 2016
|
|
Which of the following length measurement is most accurate and why?
|
|
1
|
2289
|
December 22, 2016
|
|
A LASER is a source of very intense, monochromatic and unidirectional beam of light
|
|
1
|
1664
|
December 22, 2016
|
|
Explain this common observation clearly---If you look out of the window of a fast moving train
|
|
1
|
1786
|
December 22, 2016
|
|
A new unit of length is chosen such that the speed of light
|
|
1
|
5263
|
December 22, 2016
|
|
What is the technique used for measuring large time intervals?
|
|
0
|
3713
|
December 22, 2016
|
|
Why parallax method cannot be used for measuring
|
|
1
|
3901
|
December 22, 2016
|
|
Estimate the average mass density' of sodium atom
|
|
1
|
4917
|
December 22, 2016
|
|
The sun is a hot plasma (ionized matter) with its inner core
|
|
1
|
5613
|
December 22, 2016
|
|
The radius of atom is of the order of 2 A
|
|
1
|
2975
|
December 22, 2016
|
|
Why length, mass and time are chosen
|
|
1
|
1847
|
December 22, 2016
|
|
Why has second been defined in terms of periods
|
|
1
|
2344
|
December 22, 2016
|
|
What is the total atomic volume in ${{m}^{3}}$ of a mole of hydrogen atoms?
|
|
1
|
4034
|
December 22, 2016
|
|
A student measures the thickness of a human hair
|
|
1
|
7514
|
December 22, 2016
|
|
The mass of a proton is 1.67 x ${{10}^{-27}}$ kg. How many protons would make 1 g?
|
|
0
|
3427
|
December 22, 2016
|
|
Do AU and A represent the same unit of length?
|
|
0
|
8214
|
December 22, 2016
|
|
Find the value of one light year in giga metre
|
|
0
|
1899
|
December 22, 2016
|
|
How many metric tons are there in teragram?
|
|
0
|
2677
|
December 22, 2016
|
|
What is common between bar and torr?
|
|
0
|
4202
|
December 22, 2016
|