Description : Find the coefficient of `x^(-5)` in the expansion of `(2x^(2)-(1)/(5x))^(8)`
Last Answer : Find the coefficient of `x^(-5)` in the expansion of `(2x^(2)-(1)/(5x))^(8)`
Description : For what value of p is the coefficient of x^2 in the product (2x – 1) (x – k) (px + 1) equal to 0 and the constant term equal to 2 ? -Maths 9th
Last Answer : answer:
Description : A rod 3 m long is heated from 10°C to 90°C. Find the expansion of rod. Take Young’s modulus = 1.0 x 10^5 MN/m2 and coefficient of thermal expansion = 0.000012 per degree centigrade. 1. 0.168 cm 2. 0.208 cm 3. 0.288 cm 4. 0.348 cm
Last Answer : 3. 0.288 cm
Description : The coefficient of x in the expansion of (x + 3)3 is -Maths 9th
Last Answer : (d) Now, (x + 3)3 = x3 + 33 + 3x (3)(x + 3) [using identity, (a + b)3 = a3 + b3 + 3ab (a + b)] = x3 + 27 + 9x (x + 3) = x3 +27 + 9x2+27x Hence, the coefficient of x in (x + 3)3 is 27.
Description : Find the coefficient of `x^(3)` in the expansion of `(x^(2)+(1)/(3x^(3)))^(4)`
Last Answer : Find the coefficient of `x^(3)` in the expansion of `(x^(2)+(1)/(3x^(3)))^(4)`
Description : Write the coefficient of y in the expansion of (5-y) to the whole square. -Maths 9th
Last Answer : Solution :-
Description : What, besides coefficient of expansion, could make two pieces of glass incompatible for firing together?
Last Answer : Melting point would be my guess. The Fuseworks is for microwave kiln use.
Description : On which subject does the length expansion coefficient depend ?
Last Answer : : The length expansion coefficient depends on the temperature scale , the nature of the object.
Description : What is the level of expansion coefficient ?
Last Answer : The levels of expansion coefficient are alpha , beta and gamma.
Last Answer : The unit of expansion coefficient is K ^ -1 .
Last Answer : difficult Of matter No One Direction Growth Says Length Expansion , area Growth Says Field Expansion And Of volume Growth Says Volume Expansion ! Expansion Coefficient Three Type.
Description : The coefficient of `y^(7)` in the expansion of `(y+z)^(7)` is ____________
Last Answer : The coefficient of `y^(7)` in the expansion of `(y+z)^(7)` is ____________
Description : Consider the following statements- (I) The coefficient of linear expansion has dimension K^-1
Last Answer : Consider the following statements- (I) The coefficient of linear expansion has dimension K-1 (II) The ... wrong (D) I and II are both wrong
Description : A material has a coefficient of volume expansion of 60×10^-6/degree celsius. What is its coefficient of expansion?
Last Answer : 120×10^-6
Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass – (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion
Last Answer : (1) is a bad conductor of heat so only inner surface expands Explanation: When hot liquid is poured into a thick glass tumbler, it cracks because glass is a bad conductor of heat so only inner surface expands.
Description : When a ring of metal is heated what happens to its hole? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion
Last Answer : (1) expands Explanation: The hole size will increase because in expansion the size between two molecules, do not increase so when the molecules on the outer edge move outward. Due to expansion, the ... expansion is the tendency of matter to change in volume in response to a change in temperature.
Description : Gas thermometers are more sensitive than the liquid thermometers because the gases – (1) have large coefficient of expansion (2) are lighter (3) have low specific heat (4) have high specific heat
Last Answer : (1) have large coefficient of expansion Explanation: Gases are more sensitive to the temperature than liquids (such as mercury). That means gas expands more than the mercury for the same increase of temperature. Hence the has thermometer is more sensitive than liquid (mercury) thereto-meter.
Description : Gas thermometers are more sensitive than the liquid thermometers because of the gases - (1) have low specific heat (2) have high specific heat (3) have large coefficient of expansion (4) are lighter
Last Answer : (1) have low specific heat Explanation: Gas thermometers are more sensitive because gas has low specific heat than liquids.
Description : Concrete containing (A) Siliceous aggregates, has higher co-efficient of expansion (B) Igneous aggregates, has intermediate coefficient of expansion (C) Lime stones, has lowest co-efficient of expansion (D) All the above
Last Answer : Answer: Option D
Description : Manganese steels (A) Are non-magnetic (B) Possess high electrical resistance (C) Possess low coefficient of expansion (D) All the above
Description : Pick up the correct statement from the following: (A) Plastics have generally low melting point (B) The coefficient of thermal expansion of plastics is about three times than that of steel (C) ... fibre-glass with phenolic resins has absorption coefficient of about 0.67 (D) All the above
Description : For most solids, the coefficient of volume expansion is _________ the coefficient of linear expansion. a. unrelated to b. proportional to c. twice d. three times
Last Answer : three times
Description : What is a measure of the ability of a material to conduct heat? A. Specific heat capacity B. Coefficient of thermal expansion C. Coefficient of thermal conductivity D. Thermal conductivity
Last Answer : Thermal conductivity
Description : Concrete contains (i)Siliceous aggregates, having higher coefficient of expansion (ii)Igneous aggregates, having intermediate coefficient of expansion (iii)Lime stones, having lowest coefficient of expansion [ A ] i and iii [ B ] ii and iii [ C ] i and ii [ D ] i, ii and iii
Last Answer : [ D ] i, ii and iii
Description : Will the coefficient of expansion varies between A106 and A333 Grade 6 ?
Last Answer : No
Description : What is an important requisite for fillers in dental composite restorative resins in load bearing areas: A. Sub micro sized particles B. High coefficient of thermal expansion C. High in content (High filler)
Last Answer : C. High in content (High filler)
Description : .In regard to the glass of quartz particles of filling restorative resin; the microfill resins tend to have, A. A higher coefficient of thermal expansion and a higher crashing strength B. ... and a higher crashing strength D. A lower coefficient of thermal expansion and a lower crashing strength
Last Answer : B. A higher coefficient of thermal expansion and a lower crashing strength
Description : The fractional change in resistance per kelvin is known as, a. temperature coefficient of resistance b. coefficient of Voltage of charge c. thermal expansion d. all of above
Last Answer : a. temperature coefficient of resistance
Description : Gas thermometers are more sensitive than the liquid thermometers because the gases (1) have large coefficient of expansion (2) are lighter (3) have low specific heat (4) have high,specific heat
Last Answer : have large coefficient of expansion
Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass : (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion
Last Answer : is a bad conductor of heat so only inner surface expands
Description : When a ring of metal is heated what happens to its hole ? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion
Last Answer : expands
Description : In LISP, the function X (x). (2x+l) would be rendered as __________ a) (lambda (x) (+(*2 x)l)) b) (lambda (x) (+1 (* 2x) c) (+ lambda (x) 1 (*2x)) d) (* lambda(x) (+2×1)
Last Answer : a) (lambda (x) (+(*2 x)l))
Description : If `""^(12)C_(r)(4)^(12-r)(x)^(12-3r)` is a contant term in an expansion, then r = __________
Last Answer : If `""^(12)C_(r)(4)^(12-r)(x)^(12-3r)` is a contant term in an expansion, then r = __________
Description : In the expansion of `(x+y)^(n),T_(r+1)`= __________
Last Answer : In the expansion of `(x+y)^(n),T_(r+1)`= __________
Description : __________ paint has the maximum absorption coefficient. (A) Black (B) Yellow (C) White (D) Grey
Last Answer : (A) Black
Description : In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient. A. Equal to B. Directly proportional to C. Inversely proportional toD. Independent of
Last Answer : C. Inversely proportional to
Description : Co-efficient of velocity is __________ the coefficient of discharge. (A) Less than (B) More than (C) Equal to (D) Not related to
Last Answer : (B) More than
Description : The value of coefficient of discharge is __________ the value of coefficient of velocity. (A) Less than (B) Same as (C) More than (D) None of these
Last Answer : Answer: Option A
Description : The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece. (A) Less than (B) More than (C) Equal to (D) None of these
Description : The value of coefficient of velocity for a sharp edged orifice __________ with the head of water. (A) Decreases (B) Increases (C) Remain same (D) None of these
Last Answer : Answer: Option B
Description : A steel alloy containing 36% nickel is called __________, which has a zero co-efficient of expansion. (A) Austenitic stainless steel (B) Heat resisting steel (C) Invar (D) High speed steel
Last Answer : (C) Invar
Description : Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it. (A) Copper (B) Copper alloys (C) Stainless steel (D) Monel
Last Answer : (C) Stainless steel
Description : The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement. (A) Brass for low (B) Nickel alloys for high (C) Both 'a' & 'b' (D) Aluminium for all
Last Answer : (C) Both 'a' & 'b'
Description : Tube expansion allowances exist in __________ heat exchanger. (A) Multipass fixed tube sheet (B) U-tube (C) Single pass fixed tube sheet (D) None of these
Last Answer : (B) U-tube
Description : Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance. (A) Flint (B) Soda (C) Pyrex (D) Potash
Last Answer : (C) Pyrex
Description : Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture. (A) CaO (B) MnO2 (C) ZnO (D) FeS
Last Answer : (C) ZnO
Description : __________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant. (A) Pyrex (B) Soda lime (C) Lead (D) High silica
Last Answer : (A) Pyrex
Description : The expression, nCv(T2- T1), is for the __________ of an ideal gas. (A) Work done under adiabatic condition (B) Co-efficient of thermal expansion (C) Compressibility (D) None of these
Last Answer : (A) Work done under adiabatic condition
Description : Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature. (A) Below (B) At (C) Above (D) Either 'b' or 'c'
Last Answer : A) Below