A. band spectrum
B. line spectrum
C. continuous spectrum
D. absorption spectrum
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Related Mcqs:
- In an X-ray tube electrons each of charge e are accelerated through V potential difference allowed to hit a metal target. The wavelength of the X-rays emitted is_______________?
A. he/ev
B. he/Vc
C. eV/h
D. impossible to predict - Waves emitted from the antenna are__________________?
A. Sound waves
B. Electromagnetic waves
C. Radio waves
D. Modulated waves - Electromagnetic waves emitted from antenna are________________?
A. Stationary
B. Longitudinal
C. Transverse
D. All the above - Which one of the following radiations possesses maximum velocity ?
A. α-rays
B. β-rays
C. γ-rays
D. All of above have the same speed - An alpha particle is emitted from 88Ra226. What is the mass and atomic number of the daughter nucleus ?
A. 224 – 84
B. 220 – 80
C. 222 – 86
D. 226 – 87 - If one or more of the neutrons emitted during fission cab be used to build up further fission then the reaction is self-sustained and is known as __________________?
A. Fission reaction
B. Fusion reaction
C. Chain reaction
D. Chemical reaction - Which of the following radiations are suitable for the treatment of an infection in the interior of the body ?
A. α-rays
B. β-rays
C. γ-rays
D. X-rays - Radiations are used for the treatment of skin of a patient is_______________?
A. Alpha rays
B. Gamma rays
C. Beta rays
D. X-rays - Which one of the following radiations has the strongest photon?
A. T.V waves
B. Microwaves
C. X-rays
D. γ-rays - In a photoelectric effect monochromatic light is incident on a metal surface. If the incident light of twice the intensity but of same wavelength the kinetic energy of the emitted electron_______________?
A. Becomes double
B. Remains same
C. Becomes half
D. First increases then decrease because of the curvilinear graph
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