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(i) Meter: The presently accepted definition of meter is the length of path travelled by light in space in 1/299,792,458th second.
(ii) Kilogram: Kilogram is the fundamental unit of volume. It is explained as the mass of a particular cylinder of platinum - iridium kept at the International Bureau of Weights and Measures in Paris.
(iii) Second: Second is the fundamental unit of time. It is explained as 86,400th part of seem solar day. Second is accurately measured by an atomic clock.
Number of neutron in C 12 is (1)6 (2)7 (3)8 (4)9 Ans: (1)6
Disadvantages of A.C. Transmission of power 1. An a.c. line needs more copper than a d.c. line. 2. The construction of an a.c. transmission line is more complex than d.c. tr
A streamlined body given relative density ρ1 falls into air from a height h1 on surface of a liquid of relative density ρ2 where ρ2 > ρ1. find out the time of immersion of body int
What are the methods for producing Ultrasonic waves? Ultrasonic Production: Three methods there for producing Ultrasonic waves are as given below: a. Mechanical generator
As the temperature of the air enhances from 0 degrees C to 20 degrees C, the wavelength of a sound made by a tuning fork of fixed frequency does which of the following? Does th
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Helium gas with a volume of 2.60 L, under a pressure of 1.30atm and at a temperature of 41.0 degrees, is warmed until both pressure and volume are doubled. a)What is the final temp
SKIPPING IS A WHAT TYPE OF MOTION
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