Energy of electron present in nth orbital of an atom with atomic number Z is given by En= -(2π2Z2me4)/(n2h2) When an electron (e) is infinite distance from nucleus it has zero interaction with...
1 Answers 1 viewsThis is simple but mind blowing question
1 Answers 1 viewsSolution: Let us assume Jacob’s current age is x and his son’s current age is y. Five years hence, Jacob’s age = x + 5 and his son’s age = y +...
1 Answers 1 views(b) larger amount of potential energy is converted into kinetic energy
1 Answers 1 viewsAnswer 1: Primarily, there are two types of root systems found in plants, namely the tap root system and fibrous root system. The main function of the roots is to absorb...
1 Answers 1 viewsr = k(a)n => 2r = k(4a)n =>2 = 4n => n = 0.5
1 Answers 4 viewsSon age be x Aman age is 3x ten years ago son age x-10 aman age 3x -10 A/Q 5(x-10) = 3x -10 5x -50 = 3x - 10 2x = 40 x =20 3x=60 son present age =20 aman present age = 60
1 Answers 1 viewsThe SI unit of power of a lens is dioptre. The power of a converging lens is positive as f is +ve.
1 Answers 1 viewsA body is said to have power of 1 watt if it does work at the rate of 1 joule in 1 s, i.e., 1W=1J/1s Power is given by the expression, Power=Work done...
1 Answers 1 viewsWe know :- an = a +(n-1)d a (m+n) = a + (m+n-1)d (just put m+n in place of n ) --------------(1) Let the first term and common difference of the A.P....
1 Answers 1 views