|
A force of (2500 + 5) N is applied over an area of (0.32 ± 0.02) m2. Calculate the pressure exerted over the area
|
|
0
|
11171
|
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
|
|
1
|
20355
|
April 20, 2019
|
|
Distinguish between dimensional variables and dimensional constants. Give example too
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|
0
|
11283
|
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
|
|
0
|
9517
|
December 22, 2016
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|
Precise measurements of physical quantities are need of science
|
|
1
|
1582
|
December 22, 2016
|
|
Answer the following
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|
1
|
1924
|
December 22, 2016
|
|
Explain the statement clearly
|
|
1
|
1025
|
December 22, 2016
|
|
The length, breadth and thickness of a rectangular sheet of metal
|
|
1
|
3757
|
December 22, 2016
|
|
State the number of significant figures in the following
|
|
1
|
3774
|
December 22, 2016
|
|
The voltage across a lamp
|
|
1
|
899
|
December 22, 2016
|
|
If displacement of a body
|
|
1
|
3301
|
December 22, 2016
|
|
A jeweller put a diamond weighing 5.42 g in a box
|
|
1
|
7191
|
December 22, 2016
|
|
Which of the following length measurement is most accurate and why?
|
|
1
|
2267
|
December 22, 2016
|
|
A LASER is a source of very intense, monochromatic and unidirectional beam of light
|
|
1
|
1635
|
December 22, 2016
|
|
Explain this common observation clearly---If you look out of the window of a fast moving train
|
|
1
|
1745
|
December 22, 2016
|
|
A new unit of length is chosen such that the speed of light
|
|
1
|
5231
|
December 22, 2016
|
|
What is the technique used for measuring large time intervals?
|
|
0
|
3674
|
December 22, 2016
|
|
Why parallax method cannot be used for measuring
|
|
1
|
3877
|
December 22, 2016
|
|
Estimate the average mass density' of sodium atom
|
|
1
|
4874
|
December 22, 2016
|
|
The sun is a hot plasma (ionized matter) with its inner core
|
|
1
|
5480
|
December 22, 2016
|
|
The radius of atom is of the order of 2 A
|
|
1
|
2936
|
December 22, 2016
|
|
Why length, mass and time are chosen
|
|
1
|
1831
|
December 22, 2016
|
|
Why has second been defined in terms of periods
|
|
1
|
2332
|
December 22, 2016
|
|
What is the total atomic volume in ${{m}^{3}}$ of a mole of hydrogen atoms?
|
|
1
|
3960
|
December 22, 2016
|
|
A student measures the thickness of a human hair
|
|
1
|
7499
|
December 22, 2016
|
|
The mass of a proton is 1.67 x ${{10}^{-27}}$ kg. How many protons would make 1 g?
|
|
0
|
3406
|
December 22, 2016
|
|
Do AU and A represent the same unit of length?
|
|
0
|
8164
|
December 22, 2016
|
|
Find the value of one light year in giga metre
|
|
0
|
1879
|
December 22, 2016
|
|
How many metric tons are there in teragram?
|
|
0
|
2654
|
December 22, 2016
|
|
What is common between bar and torr?
|
|
0
|
4136
|
December 22, 2016
|