Answers posted by vijayalakshmi.r

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problem on probability

answered Sep 19, 2016

The number of way the letters in the word TRAP gets jumbled is 4! ways = 4x3x2x1 = 24 ways The numb...

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Simplify: (-5) - (-48) ÷ (-16) + (-2) x 6

answered Sep 19, 2016

Apply BoDMAS rule -5 +48 divided by -16 -2 x 6 =-5 + (-3) + (-12) = -5-3-12 = -20

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Davission & Germer expt

answered Sep 19, 2016

The electrons which are emitted from the filament form a convergent beam. It acts like a cathode. Th...

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what is the nature of symmetry of electric field due to point charge

answered Sep 15, 2016

It is spherical in nature, because the electric filed intensity will be the same in all directions f...

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two particles are projected from the same point on ground simultaneously with speeds 20 and 20 by root 3 at angles 30 and 60 with the horizontal in the same direction the maximum distance between them till both of them strike the ground approximately is

answered Sep 14, 2016

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maths jee question..please help.. Q ..the area of the closed figure bounded by y=x,y=-x and the tangent to the curve y=√x^2-5 at the point (3,2) is

answered Sep 14, 2016

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After leaving the ground from test a balloon is rising vertically with uniform acceleration of 4 ft / sec2. After 16 seconds a small heavy particle falls freely from the balloon. When the particle will reach the ground? (Apply calculus).

answered Sep 14, 2016

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Electorn and protorn( charged particle)

answered Sep 12, 2016

Whenever the angle of a charged particle enters a uniform electric field is lesser than 90 degrees, ...

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the sides of a cyclic quadrilateral are 36 cm, 77 cm ,75 cm and 40 cm respectively.find it's area

answered Sep 12, 2016

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motion in straight line

answered Sep 12, 2016

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Moment of inertia to the plate and passing through one of its corner is

answered Sep 12, 2016

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the joint equation of the straight lines x+y=1 and x-y=4 is

answered Sep 9, 2016

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the values of h for which the equation 3x2 +2hxy-40x+30y-75=0 represents a pair of straight lines are

answered Sep 9, 2016

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Why is that a DC ammeter cannot read an AC?

answered Sep 9, 2016

The average value of current and voltage. Over acomplete cycle is zero. Hence aDC ammeter cannot mea...

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Electorn and proton( charge particle)

answered Sep 8, 2016

It will trace a parabolic path whenever the angle us less than 90°

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Number of obtuse Abgles of a quadrilateral.

answered Sep 8, 2016

The sum of the angles of a quadrilateral is 360°. Hence only 3 obtuse angles is possible to maintain

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A point equidistanct from the line 4x+3y+2=0, 5x-12y+26=0 and 7x+24y-50=0 is

answered Sep 7, 2016

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A variable line passes through the points 1,1 and 2,0 and another line L: PASSES THROUGH 1/2,0 AND PERPENDICUAR TO l then the area of the triangle formwd by lines L,L: AND

answered Sep 7, 2016

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the pedal points of the of a perpendicular drawn from origin on the line 3x+4y-5=0 is

answered Sep 7, 2016

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The tangent at a point (a,b) to the curve y = sin x is parallel to the line 2y = x, if a > 0, find b.

answered Sep 7, 2016

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the equations of the line through the point of intersection of the line x-y+1=0 and 2x-3y+5=0 and whose distance from the point 3,2 is 7/2 is

answered Sep 7, 2016

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Describe the shape of motion of a charge inside uniform magnetic field at 30degree and 45degree

answered Sep 7, 2016

It will trace a parabolic path.

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equation of a straight line on which length of perpendicular from the origin is 4 unit and the line makes an angle of 120 with the x-axis is

answered Sep 7, 2016

p = 4 units Equation of the line in normal form is xcos60 +ysin60 = 4 Hence the equation of the li...

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Combinatorics involving Bernoulli Trials

answered Sep 7, 2016

n = 3, r = 2 P(getting a success ) = 2C1x3C1/5C2 = 6/10 = 3/5 Therefore p = 3/5 and q = 1 - 3/5 = ...

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Basis of bohr model the radius of third orbit is

answered Sep 6, 2016

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is the speed of boat is 5 kilometre per hour in still water it crosses a river of width 1 km along the shortest possible path in 15 min. th velocity of the river water is

answered Sep 6, 2016

distance/time = speed Speed of the boat in still water = 5km/hr width of the river = 1km Hence 1/...

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a man walks in rain at 5 km/h and obsreves the rain falling vertically.when hr stops rain appers to strike his back at 30 from the vertical .when he turns around and walks back at the same speed at what angle shoud he hold his umbrella to protect himself

answered Sep 6, 2016

(0 - 30 degrees = 60 degrees. Therefore he should hold his umbrella at an angle of 60 degrees

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a man when standstill observes the rain falling vertically. when he moves with 4 km/h he has to hold his umbrella at an angle of 53 from the vertical.find velocity of the rain drops.

answered Sep 6, 2016

let the velocity of the raindrops be x km/hr. Man's velocity = 4km/hr and the angle is 90 - 53 = 37...

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rotational motions in system of particles

answered Sep 6, 2016

A pendulum oscillate with amplitude 90 degree. During oscillation the maximum acceleration occurs ...

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(2x)2 + 7x -4 zero of polynomial

answered Sep 5, 2016

2x^2+8x-x-4=0 2x(x+4)-1(x+4)=0 (2x-1)(x+4)=0 Hence x = 1/2 and x= -4 are the zeroes

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the equation of the base of an equilateral triangle is X + Y=2 and the vertex is 2,-1.th lenght of the side of the triangle is

answered Sep 5, 2016

Already answered - https://clay6.com/qa/49320/if-the-equation-of-the-base-of-an-equilateral-triangle...

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two angles of projection for the same range

answered Sep 1, 2016

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An ideal gas undergoes a cyclic process (V, P) (3V, P) (V, P) alone straight lines on the p –plane. Calculate the work done in the process.

answered Aug 31, 2016

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Draw its voltage vs current characteristics in the reverse bias and indicate the breakdown voltage on the characteristics.

answered Aug 31, 2016

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Draw the I-V characteristics of a light emitting diode (LED) and explain its working principle

answered Aug 31, 2016

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A cyclist tilts to make an angle theta with level ground as he takes a circular turn of radius r. If the speed of the cycle is v, show that tan theta = rg / v2 .

answered Aug 31, 2016

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Motion in two dimension

answered Aug 31, 2016

given g = 10m/s^2 and T = 5s T = 2usinx/g = 2usinx/10 = 5 therefore usinx = 25 Hmax = u^2sin^2x/2...

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How to solve this (answer is in terms of radius)

answered Aug 31, 2016

Let m1 = m and m2 = 2m, u1 = u and u2 = 0 and v1 and v2 be the final velocities of the two bal...

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physics numerical of motion in straight line.

answered Aug 31, 2016

1)The velocity of the ball u = 49m/s. and v = 0 and 9 = -9.8m/s^2 v^2-u^2= 2gs 0 - 49x49/2x-9.8 = ...

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verifey the following

answered Aug 31, 2016

-5 x -1 = 5 Hence the other integer is -5

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the product of the number of waves produced in third and fourth orbut of H atom is

answered Aug 30, 2016

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Light from a point source placed at the bottom of a rectangular glass slab of thickness 5 cm is internally reflected by the upper surface and a circle of radius 8 cm is formed at the bottom. Find the R.I. of glass

answered Aug 30, 2016

given r = 8cm and t = 5cm Therefore sinC = 5/8 But R.I = 1/sinC = 1/[5/8] = 8/5 = 1.6

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Draw the circuit diagram of a full wave rectifier using p-n junction diode and explain its operation. To which factor is the pulsating nature of the output due?

answered Aug 30, 2016

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Electric field in the cavity of a conductor

answered Aug 30, 2016

everywhere inside a conductor. The simple explanation for this is that, if ...

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Mathematics problem asked in bank exam

answered Aug 30, 2016

No: of days for 400 children = 12 days Therefore No: of days for 480 children = [400/480] x 12 = &n...

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find the various equivalence classes in z where is set of integers.

answered Aug 30, 2016

A0 = {. . . , −10, −5, 0, 5, 10, . . .} A1 = {. . . , −9, −4, 1, 6, 11, . . .} A2 = {. . . , −

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chain and table problem

answered Aug 27, 2016

https://clay6.com/qa/15888/a-uniform-chain-of-length-l-is-placed-on-a-rough-table-with-its-length-la...

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Calculate the speed of light in a medium whose critical angle is 450.

answered Aug 18, 2016

n= 1/sinC = 1/sin45° = √2 Therefore speed of light in vaccum = speed of light in air/n = 3×10^8/1.

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Euclid's postulate doubt

answered Aug 17, 2016

Given that three lines in the same plane such that l intersects m and n and n is parallel to m...

1 vote

Define angle of dip at a place. What will be the value of the angle at the poles and at the equator of the earth? At what place on the earth’s surface will be horizontal component if the earth’s magnetic field and its vertical component be equal?

answered Aug 14, 2016

The angle made by the earth's total magnetic field with the horizontal direction is called angle of ...

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