b^2 B.4a+2b C.8ab D. a^2 b^2 E. None of them
- 3+log_25=……..
A.log_240 B.log_24 C.log_2150 D. log_215 E.log_260 - log0.01=………
A. 2 B. -2 C.1/2 D.-1/2 E.0 - log_240+log_20.1+log_20.25=……….
A. 0 B. 1 C.2 D. 3 E.4 - log_2〖2√2〗=………
A. 2/3 B.1 C.1 1/2 D.-3/2 E.-2/3 - log_(x-2)(2x^2-10x+13) = 1; x=?
A.-3 B.-5/2 C. 5/2 D. 2/5 E. 3 or5/2 - If log2=m , then log_85 =………
A. (1-m)/3m B.1/3m C. (3-m)/m D. (1-m)^3 E.(3-m)/m
mass of a boy is measured by a ……… . 19.balance - One metre is equal to …….km. 20.10-3
- Elementary particles have the ……… size. 21.smallest
22.The earth can be regarded as a ………. . 22.clock - The age of universe is ……… s. 23.2 x 1018
24…….. is the language of physics. 24.Mathematics - There are ……. seconds in one year. 25.3.17 x 107
- The size of the universe is ……… time larger than that of an elementary particle. 26.1041
- A 45 mih-1 is equal to …….. fts-1. 27.66
28.A metre stick is …. than the yard stick. 28.longer - One gram is equal to …. kg. 29.10-3
- Physics is the subject which studies ………. phenomena. 30.natural
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