# Order

Updated On: 24-5-2020

22.9 k+

1.1 k+

Answer

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The Cartesian equation of the plane

vecr=(1+lamda-mu)hati+(2-lamda)hatj+(3-2lamda+2mu)hatk

is a.

2x+y=5

b.

2x-y=5

c.

2x+z=5

d.

2x-z=5

For what value of k will be the equations

x^(2)-kx-21=0

and

x^(2)-3kx+35=0

have one common root.

If the amplitude ratio of two sources producing interference is 3 : 5, the ratio of intensities at maxima and minima is

The shaft of a motor rotates at a constant speed of 1800 rpm. What is the angle in radians it has turned through in one second ?

A

0.02 M

solution of pyridinium hydrochloride has

pH=3.44

. Calculate the ionization constant of pyridine.

A tank, with a square base of area

1 .0 m^(2)

is divided by a vertical partition has a small hinged door of aren

20 cm^(2)

. The tank is filled with water in one compartment, and an acid (of relative density 1.7) in the other, both to the height of 4.0 m. Compute the force necessary to keep the door closed

If vectors

veca and vecb

are two adjacent sides of parallelograsm then the vector representing the altitude of the parallelogram which is perpendicular to

veca

is (A)

vecb+(vecbxxveca)/(|veca|^2)

(B)

(veca.vecb)/(vecb|^2)

(C)

vecb-(vecb.veca)/(|veca|)^2)

(D)

(vecaxx(vecbxxveca))/(vecb|^20

25th percentile is 20 and 75th percentile is 50, then semi interquartile range is

Prove that

(tan x)/(tan 3 x)

never lies between

1/3 and 3.

The straight line

(x-3)/3=(y-2)/1=(z-1)/0

is (A) Parallel to x-axis (B) Parallel to the y-axis (C) Parallel to the z-axis (D) Perpendicular to the z-axis

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