. The mean of a , 5a, 9a is 15. The mean of a, 3a, 5a, 7a is A.4 B.6 C.9 D. 12 E.15 The mean of 27 numbers is x. If each of 27 numbers is increased by 81 , the increase in the mean is A. 3 B. 9 C. 27 D.

copy the diagram in your answer book. Write the label against the number indicated in the lines pointing towards respective areas of the diagram in your answer book. You are also to write the caption and

(a) The substances with high melting points may be (molwcular, non molecular , either molecular or non molecular) substance. (b) Atomic mass can be measured by a(an) (ordinary, balance, spectrometer, mass

(a) The substances with high melting points may be (molwcular, non molecular , either molecular or non molecular) substance. (b) Atomic mass can be measured by a(an) (ordinary, balance, spectrometer, mass

g) (i) State ‘Le Chatelier’s principle’. (ii) Using Le Chatelier’s principle, predict the effect of increasing pressure on the following equilibrium. N2(g) + 3H2(g) ⇋ 2NH3(g) (h) (i) Describe the elements

.(a) The thickness of a cell is 70 A° thick. If 1 A° = 10-10m find the thickness of the tissue in terms of an inch. (3-marks) (b) A man walks 2 mi west and then 3 mi in a direction 60° north of east. Find

. 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

X = { a,b,c} and Y = {1,2,3,4}. A mapping is given by a ↦ 1 b ↦ 2 c ↦ 2 Draw the arrow diagram for this function. Write down the set of ordered pairs describing this function. X = { a,b,c} and Y = {1,2,3,4}.

{x/x2 + x – 6 } and B = { -3,2}. Is A = B? , A = {x/x is prime number which is less than 10} and B = {x/x2 – 8x + 15 = 0} (a) Is A = B (b) Is B⊂ A? . P = {x/x is an integer and -1 < x<3/5 }and Q

တို႔ရဲ႕ တျခား sourcesေတြက ဘာေတြလဲ။ Other sources of sodium and potassium are soda feldspar, Na 2 O.Al 2 O 6SiO 2 , sodium carnonate, Chlile saltpetre (sodium nitrate), potassium carbonate and potassium

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PREFACE This teachers' manual is made up of three parts: they deal with the various pedagogical aspects of the high school physics programme. Part I discusses the mathematical requirements, curriculum

law. Using Ohm's law define the resistance of a conductor. (ii) What is resistivity conductor? Which is more fundamental, the resistance or the resistivity? Explain . (iii) A cogent of2A flows through

i Rt 01' F.AI..SF, to the ing statenlcnls. Do not copy the (20 I he stent is the aerial part or the plant. parasitic plant produces certain special roots. VIhe florets bojne on the periphery are the ray

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