The National Institute of Open Schooling (NIOS) has announced the Class 10 and 12 results. Students who appeared in the ...

Biology Viva Questions Class 12: The Class 12 Biology practical examination plays a crucial role in the board results, and the viva voce (oral exam) often decides the final impression of a student’s ...

Q2. What is the formula used in Arithmetic Mean? Ans. Arithmetic Mean = Sum of all terms in the AP / Number of terms in the AP Q3. What is the formula used in the Sum of ‘n’ terms of an AP? Ans. Sum ...

Trust in science needs researchers, journals and institutions to correct the scientific record quickly and transparently when errors are found.