Consider the following statements.
1. The Nuclear Security Summits are periodically held under the aegis of the United Nations.
2. The International Panel on Fissile Materials is an organ of International Atomic Energy Agency.
Which of the statements given above is/are correct?

. . . . . . . . invented Atom Bomb.

A. J Robert Oppenheimer

B. John Bau a Ning

C. Samuel Cohan

D. Samuel Colt

Positive rays were discovered by

A. Thomson

B. Goldstein

C. W-Crookes

D. Rutherford

Cathode rays are

A. positive rays

B. neutral rays

C. helium rays

D. electron waves

X-ray can be produced

A. when low speed electrons is ejected

B. when high speed electron is obstructed by a metal surface

C. when anode-ray obstructed by a solid object

D. when γ-ray is obstructed by a solid object