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A student calculates the acceleration due to gravity and determine it to be 9.72 m/s2. What is his percent error, if the accepted value is 9.81 m/s2? Q. You estimate that the maximum error of an equal-arm balance is 0.01 g. What is the possible percent error when you use this balance to calculate each of the following masses?
(a) 700 g
(b) 3 kg
(c) 20 g
(d) 1.0 g
What is the specific resistance of material of a conductor. What do you mean by thermoelectric refrigerators?
you are trying to measure the diameter of a circular lab table using a lab metre stick. you measure the diameter in several directions and find the following results: 98.5 cm, 1.00
what is the importance of laser?
Which quantity is unchanged during refraction of light? Describe critical angle. Show an application of total internal reflection.
representation of graphs
Cathode rays, discovered by Sir Willium Crooke are the stream of electrons. They may be given by using a discharge tube containing gas at a low pressure of the order of 10-2 mm of
A) Wirte two materials that are magnetic and two that are non-magnetic? B) Explain magnetic induction C) Describe what is meant by "Magnetomotive" force?
Q. Explain why does heated air expand? Answer:- Temperature is habitually defined as the average thermal energy of the substance at hand. Therefore the hotter a substance
What is meant by the term 'modulation'? Define with the help of a block diagram, how the process of modulation is carried out in radio broadcasts.
The displacement of body in particular second is given by the equation Sn=u+a (2n-1)÷2, u is speed and a is acceleration. Dimensions of Sn are?
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