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Answers posted by ranjani.hogwarts
Questions
11019
answers
1
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0
votes
Find the equation of the sphere for which the given circle as great circle
answered
Jun 12, 2017
The equation of any sphere is given by, x²+y²+z²+7y-2z+2+ƛ(2x+3y+4z-8)=0 &n
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votes
choose the correct alternative R, U, X, A, D, ?
answered
Jun 12, 2017
The series will be as follows R,U,X,A,D,G as R→U=3 U→X=3 X→A=3 A→D=3 D→?=G Therefore t
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votes
How the critical density of carbon dioxide
answered
Jun 12, 2017
IS the question complete ?are you asking what is the critical density of carbon dioxide? In t...
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votes
a proton and an alpha particle enter at right angles into a uniform magneti
answered
Jun 12, 2017
Alpha particle will be helium nucleus of charge 2e and mass 4u Proton will be hydrogen of charge 1e...
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The radius of the earth is 6400 KM. What is its capacitance
answered
Jun 12, 2017
When a solid sphere or a hollow sphere of radius R is given a charge Q, the charge is equally ...
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Graphically the pair of linear equations6x-3y+10=0, 2x-y+9=0 represents two
answered
Jun 10, 2017
The lines will be parallel a1/a2=b1/b2 is not equal to c1/c2 Therefore 6/2=-3/-3 is not equal to ...
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votes
Deduce an expression for energy stored in a parallel plate capacitor
answered
Jun 10, 2017
A charged Capacitor is a store of electrical potential energy. To find the energy stored in a ca...
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In a test ,5 marks are given for every correct answer and -2are given for
answered
Jun 10, 2017
Let x be the number of incorrect answers she got. She got 10 correct answers. 5∗1
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Prove that a diameter AB of a circle bisects all those chords which are par
answered
Jun 10, 2017
Please refer https://clay6.com/qa/79558/prove-that-a-diameter-ab-of-a-circle-bisects-all-those-chor...
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votes
A polythene piece rubbed with wool is found to have negative charge .is the
answered
Jun 10, 2017
Yes,If electrons get transferred then mass will also be transferred
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votes
The ratio of wavelength of the lastline of balmer series and the last line
answered
Jun 9, 2017
For last line of Balmer series n1=2, and n2= ∞ 1/ƛB=RZ^2[1/n1²-1/n2²];z=1 substit
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votes
The debroglie wavelength of a neutron in thermal equilibrium with heavy wte
answered
Jun 9, 2017
The Wavelength will be h/√3mKT Here is how we get the above wavelength The Kinetic energy of therm
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votes
The potential energy of a dipole is zero in a uniform magnetic field.What i
answered
Jun 9, 2017
The forces experienced by the two charges constituting the electric dipole when placed in an...
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votes
if a bomb,drop from an airoplane,rise a vertically with uniform velocity,ri
answered
Jun 9, 2017
Using the equation y=(v*t) + (1/2)a(t)^2 , 0 for uniform velocity, 9.8m/s^2 for a as it is...
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votes
Find area bounded by the curves y =x2 + 5x and y= 3-x2
answered
Jun 9, 2017
y= x^2+5x y= 3-x^2 To find the area will need to find the integral for both equations: First...
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votes
Sin 2x-sin 4x + sin 6x =0
answered
Jun 9, 2017
Sin2x-sin4x+sin6x=0 (sin6x+sn2x)-sin4x=0 We know that sinx +siny=2sin(x+Y/2)cos(x-y/2) Thereofre ...
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votes
(y:y is a point common to any two parallel lines
answered
Jun 9, 2017
Parallel lines do not intersect and they dont have a common point. Hence (y:y is null set in this c...
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votes
(1,2,3.....) are infinite or finite
answered
Jun 9, 2017
This set is infinite as there are infinite number of natural numbers
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votes
a paper weight is dropped from the roof of a block of a multi storyed flat.
answered
Jun 8, 2017
The total height ,d os given by d=(x-20)*3 g=10m/s*s Velocity,c=30sec Now,applying in equation ...
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votes
Two diece are rolled find the probability that the sum is equal to 1 (
answered
Jun 8, 2017
1) When the sum is equal to '1' the Probabiltity will be Zero. 2) When the sum is equalt o 4 there ...
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votes
Two diece are rolled find the probability that the sum is (a) equal 1
answered
Jun 8, 2017
The Probability will be zero
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votes
A liquid does not wet the surface of a solid if the angle of contact is
answered
Jun 8, 2017
{> 90¤ and less than <180¤} A non-wetting liquid creates a contact angle between 90º and 1
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votes
Magnetic field amplitude given as 5.0 ×10^-6 T then what will be the total
answered
Jun 8, 2017
Magentic field of amplitude=5*10^-6 Amplitude of electric field E=B*C E=5*10^-6*3*10^8 =15*1...
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votes
if the unit o length is tripled,the numerical value of area of square will
answered
Jun 8, 2017
REfer https://clay6.com/qa/77949/if-the-unit-of-length-is-tripled-the-numerical-value-of-area-of-sq...
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votes
If time taken by a body to clear the top of a building & t2 be the time spent in air then t2 :t1
answered
Jun 8, 2017
Expression for time taken to clear the building,t1=u/g Expression for time spent in airt2=2u/g Her...
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votes
If the unit of length is tripled,the numerical value of area of square will
answered
Jun 8, 2017
up vote A=(side)2=a The area "A" of a ...
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votes
The value of expression 2/3+5/11+-1/3+-3/11 is equal to? ?
answered
Jun 7, 2017
Lets Put x=2/3+5/11-1/3-3/11 x=2/3-1/3+5/11-3/11 x=1/3+2/11 x=11+6/33 x=17/33
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votes
The number which is subtracted from 27/13 to get -3/7 is?
answered
Jun 7, 2017
Let us Put the above sum as follows, 27/13-x=-3/7 27-13x/13=-3/7 189-91x=-39 -39-189=-91x ...
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votes
The electrical intensity inside a charged hollow sphere is
answered
Jun 7, 2017
IT will be Zero. Since there is no charge inside the sphere and since electric lines of force do...
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votes
Permeability U of a ferromagnetic substance
answered
Jun 7, 2017
Permeability is the measure of the ability of a material to support the formation of a m...
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votes
Which element is used in electric heater
answered
Jun 7, 2017
Nichrome is used in electric heater. Most heating elements use nichrome 80/20 (80% ni...
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votes
Absorbed electrical energy is
answered
Jun 7, 2017
The power to absorb electricity and utilize it in some way. There are two types of absorpti...
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votes
how many mega coloumbs of positive charge or negative charge are in 1 mole
answered
Jun 7, 2017
In every molecule of H2 there are 2 electrons.So total no. of electrons in 1 mole is = 2*6....
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votes
A machinegun firs n bullets per second and the mass of each bullet is m. If
answered
Jun 7, 2017
Mass of each bullet=m Speedf each bullet=v Number of bulllets fired per second=n There fore exert...
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votes
The angle between two tangents to a circle may be 0°. plzz explain this pr
answered
Jun 7, 2017
If the angle between two tangents of a circle is zero degree then the two tangents will superimpos...
0
votes
The measure which takes into account all the data is
answered
Jun 6, 2017
Mean = Sum of all observations/Number of observations Therefore, Mean is the measure ...
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votes
What will be the change in the radius of a soap bubble if it is given posit
answered
Jun 6, 2017
Charge will be distributed uniformly on the surface of a bubble if the bubble is charged. The bu...
0
votes
The nth term of the series 3,√3,1 is 1/243. Then n=
answered
Jun 6, 2017
refer https://clay6.com/qa/106417/if-the-nth-term-of-gp-series-3-3-1-is-1-243-then-n-is-equal-t
0
votes
Find the equation of a plane passing through(1,-1,2) and is perpendicular t
answered
Jun 6, 2017
The equatoin of place passing through (1,-1,2) is, a(x-1)+b(y+1)+c(z-2)=0 &...
0
votes
Other name for the line of symmetry for isoceles triangle
answered
Jun 6, 2017
The isoceles has only one line of symmetry. Therefore the line of symmetry is median and also the a...
0
votes
The radius of a circle is increasing at the rate of 0.7 cm/sec.what is the
answered
Jun 6, 2017
The circumference of a circle (C) with radius (r) is given by C = 2πr. Therefore, the rate of
0
votes
The number of all possible matrices of order 3*3 with each entry 0 or 1 is
answered
Jun 5, 2017
Please refer link https://clay6.com/qa/28328/the-number-of-all-possible-matrices-of-order-3-x-3-wit...
0
votes
X={8powern - 7n-1/n belongs to n}Y= {49(n-1)/ n belongs to N} then,a) X i
answered
Jun 5, 2017
X=8powern-7n-1/n Y=49(n-1) Put n=1,2,3,...and finding elements of X and Y, X={0,49,490,4067,32732...
0
votes
A fair coin and an unbiased die are tossed. Let A be the event of getting h
answered
Jun 5, 2017
Please refer the link https://clay6.com/qa/528/a-fair-coin-and-an-unbiased-die-are-tossed-let-a-be-...
0
votes
Two charges Q and Q are placed at the diagonally opposite corners of a s
answered
Jun 5, 2017
Please refer the below link https://clay6.com/qa/26771/a-charge-q-is-placed-at-each-of-the-two-oppo...
0
votes
Who gives theory of angular momentum
answered
Jun 5, 2017
The angular momentum, L of a rigid body with moment of inertia I rotating...
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votes
Factors on which resistance of conducting wire depends?
answered
Jun 5, 2017
There are four factors that influence the resistance in a conductor. 1.Thickness (cross sectiona...
0
votes
write down the value of absolute permittivity of free space
answered
Jun 5, 2017
Every medium is supposed to possess two permittivities : &nbs...
0
votes
A dielectric slab is inserted between the plates of isolated capacitor the
answered
Jun 5, 2017
Here,the capacitor is isolated. It is already charged or else there would be no force. But wh...
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votes
Jay also answered all the questions and scored -6 marks though he got 4 cor
answered
Jun 5, 2017
Incomplete question . What is the number of marks given for correct and incorrect answer?
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