100 surnames were randomly picked up from a local telephone directory and the frequency distribution of the number of letters in the English alphabet in the surnames was obtained as follows

Determine Median number of letters in the surnames

100 surnames were randomly picked up from a local telephone directory and the frequency distribution of the number of leltters in the English alphabet in the surnames was obtained as follows . {:("Number of letters ","Numberse of surnames"),(1-4,6),(4-7,30),(7-10,40),(10-13,16),(13-16,4),(16-19,4):} Determine the median number of letters in the surnames .

The probability of picking a letter from the set of English alphabets is 5/26 . The alphabet can be……………..

Eight different letters of an alphabet are given . Words of four letters from these are formed the number of such words with at least one letter repeated is

ten different letters of alphabet are given . Words with 5 letters are formed from these given letters than the number of words which have at least one letter repreated is

The letters n, l and m proposed by Bohr, Sommerfeld and Zeeman respectivelt for quantization of angular momentum in classical physics were later on obtained as the results of solution of Schrodinger wave equation based on quantum mechanics. The term n, l, m are named as principal quantum number, azimuthal quantum number and magnetic number respectively. The fourth quantum number i.e., spin quantum number (s) was given by Uhlenback on the basis of two spins of electrons. The first two quantum number also decides the nodes of an orbital. The numerical value Psi_(4,3,0) denotes

The letters n, l and m proposed by Bohr, Sommerfeld and Zeeman respectivelt for quantization of angular momentum in classical physics were later on obtained as the results of solution of Schrodinger wave equation based on quantum mechanics. The term n, l, m are named as principal quantum number, azimuthal quantum number and magnetic number respectively. The fourth quantum number i.e., spin quantum number (s) was given by Uhlenback on the basis of two spins of electrons. The first two quantum number also decides the nodes of an orbital. Which statement about energy level in H-atom is correct ?

Cut the bold type English alphabets (capital) and paste in your notebook. Draw possible number of lines of symmetry for each of the letter, How many letters have no line of symmetry?

Cut the bold type English alphabets (capital) and paste in your notebook. Draw possible number of lines of symmetry for each of the letter, How many letters have more thantwo lines of symmetry?