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Write the dimensional formula of torque
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0
|
866
|
August 15, 2016
|
|
A LASER is source of very intense, monochromatic and unidirectional beam of light These properties of a laser light can be exploited to measure long distances
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|
1
|
1142
|
August 15, 2016
|
|
The sun is a hot plasma (ionized matter) with its inner core at a temperature exceeding 107 K and its outer surface at a temperature of about 6000 K
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1
|
1146
|
August 15, 2016
|
|
The nearest star to our solar system is 4.29 light years away. How much is this distance in terms of parsecs?
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1
|
1441
|
August 15, 2016
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Explain this common observation clearly
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1
|
1174
|
August 15, 2016
|
|
Point out the measurable likely to create the maximum error in die following experimental measurement: Young's Modulus' Y' of the material of the beam is calculated using the relation
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0
|
3738
|
August 15, 2016
|
|
What are the limitations of dimensional analysis?
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|
0
|
36041
|
August 15, 2016
|
|
How is one system of units converted to another with the help of dimensions
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0
|
2113
|
August 15, 2016
|
|
"All constants are dimensionless and all variables have dimensions." Comment
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0
|
3121
|
August 15, 2016
|
|
Mankind has existed for about ${{10}^{6}}$ years whereas the universe is about ${{10}^{10}}$ year old. If the age of universe is taken to be one day, how many seconds has the mankind existed?
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0
|
3136
|
August 15, 2016
|
|
Give Avogadro's method to measure distances of the order of ${{10}^{-10}}$ m
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|
0
|
1669
|
August 15, 2016
|
|
Give sizes of some objects as distances from ${{10}^{-15}}$ to ${{10}^{26}}$m
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|
0
|
580
|
August 15, 2016
|
|
How SONAR, RADAR and LASER can be used to measure distance?
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0
|
8516
|
August 15, 2016
|
|
Give a method to determine the angular size of a planet
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|
0
|
4105
|
August 15, 2016
|
|
Give a method for the measurement of large distance
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|
0
|
1784
|
August 15, 2016
|
|
Give characteristics of a standard unit
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|
0
|
32500
|
August 15, 2016
|
|
What is a prefix ? Give some common prefixes for multiples and submultiples
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|
0
|
6276
|
August 15, 2016
|
|
What is system of units ? Mention some of them
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|
0
|
1316
|
August 15, 2016
|
|
List the S.I. base quantities and find their units with symbols
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|
0
|
4697
|
August 15, 2016
|
|
What are the advantages of S.I.?
|
|
0
|
32971
|
August 15, 2016
|
|
The principle of 'parallax' is used in the determination of distance of very distant stars
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|
1
|
1365
|
August 15, 2016
|
|
Explain the statement clearly :
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|
1
|
624
|
August 15, 2016
|
|
It is a well known fact that during a total solar eclipse the disk of the moon almost completely covers the disk of the sun. Determine the approximate diameter of the moon
|
|
0
|
1428
|
August 15, 2016
|
|
The farthest object in our universe discovered by modem astronomers are so distant that light emitted by them takes billions of years to reach the earth
|
|
1
|
780
|
August 15, 2016
|
|
A LASER beam at moon returns after 2.56 s from moon. What is the radius of the orbit of moon (lunar orbit) around the earth?
|
|
0
|
594
|
August 15, 2016
|
|
It is claimed that the two cesium clocks, if allowed to run for 100 years, free from any disturbance, may differ by only about 0.02 s. What does this imply for the accuracy of the standard cesium clock in measuring time interval of 1 s?
|
|
0
|
2493
|
August 15, 2016
|
|
A man walking briskly in rain with speed v must slant his umbrella forward making an angle 0 with the vertical
|
|
1
|
1569
|
August 15, 2016
|
|
When the planet Jupiter is at a distance of 824.7 million kilometres from the earth
|
|
1
|
6264
|
August 15, 2016
|
|
One mole of an ideal gas at NTP and pressure occupies 22.4 L (molar volume)
|
|
1
|
2695
|
August 15, 2016
|
|
The unit of length convenient on the atomic scale is known as an angstrom and is denoted
|
|
1
|
1988
|
August 15, 2016
|