1 Unit 3 Chapter 100 Number पक्के✅मानव कल्याण में जीव विज्ञान NEET 2023 Biology | Parth Sir

FIITJEE CHAPTER PRACTICE PROBLEM STRAIGHT LINE 2 L I M I T E D 6 1 Each side of a square is of length 6 units and the centre of the is (-1, 21, One of square diagonals is parallel to y 0 Find the co-ordinates of the square l 2 A vertex of an equilateral triangle is (2, 3) and the opposite side is x y 2. Find the equation of other sides 3 Aline passes through the point P(2, 3 and makes an angle u with postive direction ot xais If it meets the lines represented by x -2xy -y o at the points A and B PAPB e 0, x] then number of such equal io 4 If the slopes of the lines given by the equation 24x ax y+26xy 3 ular distance oint (1, 1) from these the values of

An element crystallises in the fcc crystal lattice and has a density of 10 g cm^(-3) with unit cell edge length of 100 pm . Calculate number of atoms present in 1 g of crystal.

An element occurs in BCC with edge length 300 pm. The density of solid is "7.2 g cm"^(-3) . Find out (a)Number of atoms in foil of 27 cm^2 area and 1 cm thickness. (b)Number of unit cells in the foil . (c )Number of atoms in a foil of 100 g.