Atomic Nuclear Physics MCQ Quiz Questions and Answers - 2

Question: 6

X-rays are ____ waves.

(A) Electrical

(B) Sound

(C) Magnetic

(D) Electromagnetic

Question: 7

____ is used to determine wavelength of X-rays.

(A) Spectrometer

(B) Michelson interferometer

(C) Bragg’s spectrometer

(D) Bainbridge spectrometer

Question: 8

Which law was helpful in determining the atomic number of rare earth elements?

(A) Bragg’s law

(B) Pauli’s law

(C) Periodic law

(D) Moseley’s law

Question: 9

The colour of light that emerges from ruby laser is ____

(A) Red

(B) Blue

(C) Green

(D) Yellow

Question: 10

Laser is used in brain and eye surgery because _____

(A) It penetrates through eye and brain easily

(B) It is harmless

(C) It cuts the tissues easily

(D) It seals small blood vessels they cut through