1000+ NEET Physics MCQ Questions and Answers Pdf - 2

Question: 6

When an energetic electron or positron present in cosmic rays collides with the nuclei of atoms in the earth’s atmosphere it loses energy in the form of

(A) high energy neutrino

(B) high energy neutron

(C) high energy proton

(D) high energy photon

Question: 7

Geiger-Muller counter is used to measure the ______ of the radioactive radiation.

(A) thermal capacity

(B) wavelength

(C) intensity

(D) frequency

Question: 8

In Bainbridge mass spectrometer, the larger the radius of curvature of track

(A) smaller the mass of isotopes

(B) larger the mass of isotopes

(C) mass of isotopes tends to zero

(D) cannot comment

Question: 9

Energy of an electron when it is accelerated through a potential difference of 1 volt is

(A) one becquerel

(B) one electron volt

(C) one curie

(D) one roentgen

Question: 10

The principle used in hydrogen bomb is

(A) ionisation

(B) chain reaction

(C) nuclear fusion

(D) nuclear fission