Two atoms are said to be isotopes if -
(a) they have the same atomic number but different mass numbers
(b) they have the same number of neutrons but different mass numbers
(c) the sum of the number of protons and neutrons is the same, but the number of protons is different
(d) they have the same number of neutrons but different modes of radioactive decay
Consider the following statements regarding El Nino effect on Indian Monsoon :
1. The surface temperature goes up in the Southern Pacific Ocean and there is deficient rainfall in India.
2. The Walker Circulation shifts eastward from its normal position and reduces monsoon rainfall in India.
Which of the statements given above is/are correct ?
(A) 1 only (B) 2 only (C) Both 1 and 2 (D) Neither 1 nor 2
Mathematics has 25%formulas, 25%proofs and apply 25%thinking and 25%efforts.
In real life situations proofs are nothing but already existed stories(we know the solutions from all experienced people).
formulas are nothing but goals. we have so many goals b