Find the distance between (2,3) and (4,1).

In a biprism experiment the distance between the slit and the screen is 1 m and the separation of the two virtual images of the slit is 0.4 mm. An interference pattern is obtained with light of wavelength 5.5 xx 10^-7 m . Find the distance between the 3rd and the 8th bright band.

Co-ordinates of points are given below. Hence find the distance between pair. -4 , 5

Find the distance between the planes x+2y+3z+7-0 and 2x+4y+6z+7=0 .

Find the distance between parallel lines 4x-3y+5=0 and 4x-3y+7=0

Two circles of radii 5.5cm and 4.2cm touch each other externally. Find the distance between their centres.

Find the distance between the given points.(iv) I(3.5,6.8), J(1.5,2.8)

Find the distance between the parallel lines 3x+4y+3=0 and 3x+4y+15=0

Find the distance between the given points. (i) A(3,-4), B(-5,6)