- (A) increases
- (B) it decreases
- (C) it remains same
- (D) sometimes increases and sometimes decreases
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- (A) Cathode rays
- (B) Positive rays
- (C) γ-rays
- (D) Beta rays
- (A) γ-rays
- (B) Infra red radiation
- (C) Visible light
- (D) Ultraviolet rays
- (A) ultraviolet rays
- (B) X-rays
- (C) infra red radiation
- (D) visible radiation
- (A) pair production
- (B) Compton effect
- (C) annihilation of matter
- (D) X-rays production
- (A) Ne only
- (B) He-Ne both
- (C) Electrons of He
- (D) Electrons Ne
- (A) 10-4 sec
- (B) 10-5 sec
- (C) 10-3 sec
- (D) 10-8 sec
- (A) Metal stable state
- (B) Normal state
- (C) Inverted population
- (D) All the above
- (A) Stimulated
- (B) Absorbed
- (C) Cause X-ray emission
- (D) Cause laser production
- (A) It does emit radiation
- (B) Its size as compare to proton and neutron is very small
- (C) No antiparticle of electron is present
- (D) The velocity of electron must be very high according to uncertainty principle
